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www.americanradiohistory.com
WALGREEN PAGE 17-1
WALGREEN CO. Model 505
EXTERNAL ANTENNA
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NOTE: Specify Model and Serial Numbers for all Replacement Parts
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CAPACITORS
REPLACEMENT PARTS
RESISTORS Part No. Part No.
Cl .001 mf 600 V 12004-001 R1 470000 ohm 1/2 W _. 11005-474 C2 Ant. Section Gang R2 33000 ohm 1/2 W 11005-333 C3 Ant. Trimmer } R-1055 R3 2.2 Meg 1/2 W 11005-225 C4 .1 mf 200 V 12000-1 R4 47000 ohm 1/2 W 11005-473 C5 .05 mf 200 V C6 Ose. Section Gang C7 Ose. Trimmer
12000-05 R5 SW1-500000 ohm V. C.
R-1055 R6 150 ohm 1/2 W R-1043-1
11005-151
C8 50 mmf Mica 12010-50 R7 6.8 Meg 1/2 W R8 220000 ohm 1/2 W
11005-685 11005-224
C9 .05 mf 400 V 12002-05 R9 470000 ohm 1/2 W 11005-474 C10 250 mmf Mica 12010-250 R10 330 ohm 1 W 11008-331 C11 .01 mf 400 V 12002-01
R11 1200 ohm 1 W 11008-122 C12 250 mmf Mica 12010-250 R12 150 ohm 1/2 W 11005-151 C13 .01 mf 400 V 12002-01 C14 .03 mf 400 V 12002-03 C15 20 mf 150 V MISCELLANEOUS C1640mf150V} R-1241-1 C17 40 mf 150 V 12101-40 Part No.
Spk. Speaker COILS AND TRANSFORMERS Dial Glass R-1046 R-1342
Part No. Dial Pointer R-1255-1 L1 Loop R-1237 Diffusion Screen R-1194 L2 Ose. Trans. Coil R-1033 Tuning Shaft R-1160 T1 1st I. F. Trans. R-1025-3 Cabinet R-5011.... T2 2nd I. F. Trans. R-1025-4 Knob R-1032 T3 Output Trans. Assem. R-1040-1
©John F. Rider
www.americanradiohistory.com
-2AGE 17-2 WALGREEN Model 505 WA1.GREEN CO.
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CJohn F. Rider
www.americanradiohistory.com
WARWICK PAGE 17-1
WARWICK MFG. CORP. MODEL 11011
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©John F. Rider
www.americanradiohistory.com
PAGE 17-2 WARWICK MODEL 11011 WARWICK MFG. CORP.
DESCRIPTION
Model 11011 is a 4 -tube superheterodyne portable receiver designed for operation on a 117 volt 50-60 cycle, 117 volt DC power supply or from a self-contained battery.
This receiver covers the frequency range from 535 kilocycles to 1600 .kilo- cycles (K.C.).
The tubes used are: - 1 R5-Mixer, Oscillator 1S5-Detector and first Audio 1U4-I. F. Amplifier 3Q4-Power Output No rectifier tube is required as a Selenium rectifier is used when operating
on A. C. current.
BATTERY CONNECTOR
MODEL HO POWER RATING 15 WATTS
1400 KC
1600 KC
ON-OFF SWITCH 9 1h TUNING SHAFT VOLUME CONTROL
ALIGNMENT PROCEDURE The following alignment procedure is for use only by competent servicemen having the
proper equipment. The alignment should be made with volume control fully on, and the output from the signal
generator as low as possible, to prevent A. V. C. action from interfering with correct alignment. With the output meter connect across the voice coil of the speaker, the output meter reading
for 50 milliwatts is .4 volts using a signal which is, modulated 400 c.p.s. Adjust all trimmers for maximum output. Repeat alignment procedure given below as a
final check. CAUTION: This is an A.C. - D. C. receiver and if alignment is made with the receiver con-
nected to 117 volts A. C. or D. C., it is necessary to isolate the signal generator or the receiver from the line by use of a transformer, or place a .2 M. F. D. condenser in both test leads of
the Signal Generator. Position Dummy Trimmer
of Generator Ant. Generator Adjust- Trimmer Variable Frequency Mfd. Connections ment Function
Fully open 455 KC .1 1R5 Grid (Stator of CIA)
T2 Output I. F.
Fully open 455 KC .1 1R5 Grid (Stator of CIA)
Ti Input I. F.
Fully open 1600 KC .00025 Ant. lead (Stapled to Cabinet)
C1B Oscillator
Tune in signal from generator
1400 KC .00025 Ant. lead (Stapled to Cabinet)
CIA Antenna
*Connect ground lead of signal generator to Common "B." **Connect ground lead of signal generator to ground wire stapled to cabinet.
If it should become necessary to re -adjust the loop antenna loading coil tune in a weak sta- tion, between 600 and 650 Kilocycles, and adjust for maximum output.
()John F. Rider
www.americanradiohistory.com
WARWICK MFG. CORP. MODEL 11411.-N
WARWICK PAGE 17-3
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©John F. Rider
www.americanradiohistory.com
RAGE 17-4 WARWICK
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()John F. Rider
www.americanradiohistory.com
WAR ICK PAGE 1 -5
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©John F. Rider
www.americanradiohistory.com
PAGE 17-6 WARWICK MODEL 11801 WARWICK MFG. CORP.
ALIGNMENT PROCEDURE
The following alignment procedure is for use only by competent servicemen having the proper equipment.
The alignment should be made with volume control fully on, and the output from the signal generator as low as possible, to prevent A.V.C. action from interfering with correct alignment.
With the output meter connected across the voice coil of the speaker, the output meter reading for 50 milli -watts is .4 volts using a signal which is modulated 400 c.p.s.
Adjust all trimmers for maximum output. Repeat alignment procedure given below as a final check.
CAUTIONc This is an A.C.-D.C. receiver and when aligning the set it is necessary to isolate the Signal Generator or the Receiver from the line by use of a transformer, or place a .2 MFD. condenser in both test leads of the Signal Generator.
Position Generator Dummy Generator Trimmer Trimmer of Frequency Ant. Connections Adjustment Function
Variable Mfd.
Fully open 455 KC .1 *12SA7 Grid Tl Input I.F. (Stator of C1A)
Fully open 455 KC .1 *12SA7 Grid T2 Output I.F. (Stator of C1A)
Fully open 1630 KC .00025 *12SA7 Grid C1B Oscillator (Stator of C1A)
Tune in signal from generator
1.400 KC .00025 *Ant. lead from loop
C1A Antenna
*Connect ground lead of signal generator to chassis.
LINE CORD 1 .FOTO EXTANT.
UON-OFF SWITCH AND
VOLUME CONTROL
LOOP ANTENNA AND BACK
TUNING SHAFT
©John F. Rider
www.americanradiohistory.com
WARWICK PAGE 17-7
WARWICK MFG. CORP. MODEL 11802v -M
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©John F. Rider
www.americanradiohistory.com
PAGE 17-8 WARWICK S;ZODr L 11302V -M WARWICK MFG. CORP.
ALIGNMENT PROCEDURE
The following alignment procedure is for use only by competent servicemen having the proper equipment.
The alignment should be made with volume control fully on, and the output from the signal generator as low as possible, to prevent A.V.C. action from interfering with correct alignment.
With the output meter connected across the voice coil of the speaker, the output meter reading for 50 milli -watts is .4 vbIts using a signal which is modulated 400 c.p.s.
Adjust all trimmers for maximum output. Repeat alignment procedure given below as a final check.
CAUTION< This is an A.C.-D.C. receiver and when aligning the set it is necessary to isolate the Signal Generator or the Receiver from the line by use of a transformer, or place a .2 MFD. condenser in both test leads of the Signal Generator.
Position Generator Dummy Generator Trimmer Trimmer cl Frequency Ant. Connections Adjustment Function
Variable MM.
Fully open 455 KC .1 *12SA7 Grid T1 Input I.F. (Stator of CIA)
Fully open 455 KC .1 *12SA7 Grid T2 Output I.F. (Stator of CIA)
Fully open 1630 KC .00025 *12SA7 Grid C1B Oscillator (Stator of CIA)
Tune in signal from generator
1.400 KC .00025 *Ant. lead from loop
CIA Antenna
*Connect ground lead of signal generator to chassis.
LINE CORD
EXT.ANT. LOOP ANTENNA AND BACK
2ND I.F.
T2
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1400 KC
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©John F. Rider
www.americanradiohistory.com
ARWICK PAGE 17-9
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©John F. Rider
www.americanradiohistory.com
PAGE 17-10 WARWICK sciteonaliellf
MODELS 12310W, WARWICK MFG. CORP. 12312M
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John F. Rider
www.americanradiohistory.com
WARWICK PAGE 17-11
SPEAKS LEADS
WARWICK MFG. CORP.
eißPNONO MOTOR LE ADS
ON-OFF SWITCH e TONE CONTROL
(LINE CORD
VOLUME CONTROL
GAvT BACK 8 LOOP ANTENNA
C24 SW ANT TRIMMER ALIGN Al 16 MC)
RADIO- PHOND SWITCH
C25 SEW
1B2CMC IGMANG
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TONING SHAFT
MODELS 1231OV 12312M
Fig. 2 Tube Positions and Alignment Points
ALIGNMENT PROCEDURE The following alignment procedure is for use only by competent servicemen
having the proper equipment. With an output meter connected across the voice coil cf the speaker, the
output meter reading for V2 watt is 1.25 volts using a signal which is modulated 400 c.p.s. Follow through the procedure as outlined below for proper alignment.
The alignment should be made with volume control fully on, and the output from the signal generator as low as possible, for accurate alignment.
Position of
Band Switch
Generator Freq.
Dummy Ant.
Generator Connections
Trimmer Adjustment
Trimmer Function
Variable Position
Fully Open BC 455 KC .1 MFD 6SA7 Grid Ti T2 I. F. (Stator of C1B)
Fully Open BC 1725 KC .00025 MFD Ant. Terminal on Loop
C1C BC Osc.
Tune in signal from Generator
BC 1500 KC .00025 MFD 'Ant. Terminal on Loop
C1B R. F.
Tune in signal from Generator
BC 1500 KC .00025 MFD 'Ant. Terminal on Loop
CIA BC Ant.
Fully Open SW 18.2 MC 400 ohms 'Ant. Terminal on Loop
C25 SW Osc.
Tune in signal from Geneartor
SW 16 MC 400 ohms 'Ant. Terminal on Loop
C24 SW Ant.
GROUND lead of generator should be attached to the chassis for all adjustments C24 and C25 are located under the chassis For alignment points refer to Figure 2
* Be sure coupling link is in correct position for external antenna operation. See illustration below. Repeat above alignment procedure as a final check.
©John F. Rider
www.americanradiohistory.com
PAGE 1 12 ARWICK MODEL 12310141 ARWICK F .CORP. MODEL 12312M
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©John F. Rider
www.americanradiohistory.com
WARWICK PAGE 17-13
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©John F. Rider
www.americanradiohistory.com
PAGE 17-14 WARWICK MODEL 12801 WARWICK MFG. CORP.
DESCRIPTION
Model 12801 is a superheterodyne receiver, designed for use on 105-125 volt 60 cycle AC or DC current
The tubes used are: 12SA7-Oscillator-Mixer 50L6-Power Output 12SQ7-Detector and first Audio 35Z5 --Rectifier
This receiver covers the frequency range from 540 to 1625 KC. The dial scale is calibrated in kilocycles, minus the final zero.
LINE CORD \\ T2 TI®
455 J L KC
ON-OFF SWITCH 8 Ó VOLUME CONTROL e
CIA
1400 KC
ANT. WIRE
CIB 1625 KC
TUNING SHAFT
ALIGNMENT PROCEDURE The following alignment procedure is for use only by competent servicemen having the proper
equipment. The alignment should be made with volume control fully on, and the output from the signal
generator as low as possible, to prevent A.V.C. action from interfering with correct alignment. Adjust all trimmers for maximum output. Repeat alignment procedure given below as a final
check.
CAUTION: This is an A.C.-D.C. receiver and when aligning the set it is necessary to isolate the Signal Generator or the Receiver from the line by use of a transformer, or place a .2 MFD. condenser in both test leads of the Signal Generator.
Position of
Variable Generator Frequency
Dummy Ant. Mid.
Generator Connections
Trimmer Adjustment
Trimmer Function
Fully open 455 KC .1 ' 12SÁ7 Grid (Stator of CIA) Ti I.F.
Fully open 1625 KC .00025 'Antenna Wire C1B Oscillator Tune in signal from generator 1400 KC .00025 *Antenna Wire CIA Antenna
'Connect ground lead of signal generator to chassis.
©John F. Rider
www.americanradiohistory.com
WELLS-GARDNER PAGE 17-,
WELL ARDNER & CO. tODEL 35A86-750
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www.americanradiohistory.com
n dehefflaheCtin PAGE 17-2 WELLS-GARDNER
MODEL 35A86-750 ELL - ARD ER & CO.
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www.americanradiohistory.com
WELLS-GARDNER PAGE 17-3
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©John F. Rider
www.americanradiohistory.com
-AGE 17-4 WELLS-GARDNER MODEL 35A86-750 WELL - ARDNER O.
REPLACEMENT PARTS LIST NOTICE: There is a model number label on the chassis. This label identifies the radio as to chassis, dial and issue letter. When ordering parts or writ- RESISTORS ing, give ALL information appearing on this label. 885225 R-1, R-7 2.2 megohms 0.5 W Carbon
C84393 R-2, R-4 39 K ohms 1.0 W Carbon B84393 R-3 39 K ohms 0.5 W Carbon B84222 R-5 2200 ohms 0.5 W Carbon
MISCELLANEOUS B85105 R-6 1 megohm 0.5 W Carbon B85473 R-8 47 K ohms 0.5 W Carbon B84153 R-9 15 K ohms 0.5 W Carbon
12A477 8" P.M. Speaker. 36X358 R-10 500 K ohms Volume Control and Line Switch 3A303 Tube Socket-Octal (8 prong) Moulded B85106 R-11 10 megohms 0.5 W Carbon 3A304 Phono Motor Socket B85474 R-12, R-16 470 K ohms 0.5 W Carbon 3A305 Phono Socket-Single Pin Tip B84333 R-13 33 K ohms 0.5 W Carbon 10A467 Knob (Tuning) B84823 R-14 82 K ohms 0.5 W Carbon 10A468 Knob (Off -On Volume) 40X276 R-15 3.0 megohms Tone Control & Radio Phono Switch 10A634 Knob (SW -BC) C84271 R-17 270 ohms 1.0 W Carbon 10A529 Knob (Tone-R.P.) D84182 R-19 1800 ohms 2.0 W Carbon 2A372 Band Change Switch 13X328 Line Cord and Plug Assembly
No. 750 Phono -Console Cabinet DIAL AND DRIVE ASSEMBLY
CAPACITORS 6X21 20X329
Rubber Grommet 1Mtg. Gang Condenser Cond. Cushion Stud f j
C-2 17A164 5-50 mmf Trimmer C-3 17A235 2-24 mmf Trimmer
25X1489 25X1490
Pulley Bracket (Right) Pulley Bracket (Left)
C -6A, C -6B 14A184 Gang Condenser with Drive Pulley C-7 866501 .0005 mf 200 V Tubular
26X485 19X192
()Ave Shaft "C" Washer
C-8 17A155 350-430 mmf Trimmer 25X1491 Pointer Bracket
C-9, C-10 17A109 2.5-35 mmf Dual Trimmer 15X229 Pointer
C-12, C-18 D66403 .04 mf 400 V Tubular 10X56 Drive Cord Assembly
C-13 47X466 68 mmf Moulded 28X113 Drive Cord Tension Spring C-14 46X289 .00475 mf 180 V Tubular C-15, C-16 Part of T-2 (1st I -F Coil Assembly) C-19, C-23 47X463 47 mmf Moulded C-20, C-21 Part of T-3 (2nd I -F Coil Assembly) C -22A, 47X112 50-50 mmf Dual Mica
30X517 4X915 4X916 4X931 58X704
Dial Clamp Escutcheon, Dial (Right) Escutcheon, Dial (Left) Escutcheon Insert Dial Glass
C-228 7A200 Pilot Light Socket Assembly C-24 064403 .04 mf 400 V Tubular 7A32 Pilot Light Bulb No. 51
C-25 D66502 .005 mf 400 V Tubular C-26 D67104 .10 mf 400 V Tubular C-27 D64253 .325 mf 400 V Tubular TRANSFORMERS AND COILS C-28 D66402 .004 mf 400 V Tubular C-29 D66103 .01 mf 400 Tubular T-1 9A1917 "D" Range Antenna Coil Assembly C-3040 40 mf 450 V) T-2 9A1814 1st I -F Coil Assembly C -30B 45X346 40 mf 450 VI. 3 Section Electrolytic T-3 9A1815 2nd I -F Coil Assembly C-30CJ 20 mf 25 V T-4 26A442 "B" Range Loop Antenna C-31 H66402 .004 800 V Tubular T-5 9A1918 Oscillator Coil Assembly C-32 47X467 470 mmf Moulded T-6 53X282 Power Transformer C-33 B66503 .05 mf 200 V Tubular T-7 51X134 Output Transformer _._.
BROA I AST 55 60
SHOAT WGVE / 7
METERS 50 45
///
70 1
10 12
30 25
100 120 40 160 KILiVCLE
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ON-OFF SWITCH AND VOLUME CONTROL
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A 1
BAND SWITCH
TONE CONTROL AND PHONO -RADIO SWITCH
A86-2299
TUNING KNOB
©John F. Rider
www.americanradiohistory.com
WELLS-GARDNER PAGE 17-5
WELLS-GARDNER & CO. MODEL 436A76-670
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©John F. Rider RECO;D CHANGER: Farnsworth Model P-51, RCD. CH. 17-1
www.americanradiohistory.com
dClEI/f6i[Cd lr PAGE 17-6 WELLS-GARDNER MODEI, 436A76-670 WELLS-GARDNER & CO.
T1 PRI.
CS
2A360 11 1 !Ó
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540-1600 KC.
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9.25-15 MC. \
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®John F. Rider www.americanradiohistory.com
WELLS-GARDNER PAGE 17-7
WELLS-GARDNER & CO. MODEL 436A76-670
REPLACEMENT PARTS LIST NOTICE: There is a Model Number label on the chassis. This label identifies the radio as to chassis, dial and issue letter. When ordering parts or writing, give ALL information appearing on this label.
MISCELLANEOUS PART NO. DESCRIPTION 12A442 6" P.M. Speaker complete with Output Transformer 12A436 8" P.M. Speaker complete with Output Transformer
Cone and Voice Coil Assembly (Specify part number and letters stamped on speaker) Output Transformer (Specify part number and letters stamped on speaker)
3A303 Tube Socket-Octal (8 prong) Molded 3A304 Phono Motor Socket 3A305 Phono Socket-Single Pin Tip 2A360 Band Change Switch 13X328 Line Cord and Plug Assembly 10A614 Knob (Tuning) 10A615 Knob (Volume) 10A616 Knob (Tone-R.P.) 10A617 Knob (SW -BC)
CAPACITORS C-1 47X445 270 mmf Molded C-2 17A164 5-50 mmf Trimmer C-3 17A235 2-12 mmf Trimmer C-4 47X473 47 mmf Silvered Mica C-5 47X474 360 mmf Silvered Mica C -6A, C -6B 14A184 Gang Condenser C-7 B66501 .0005 mf 200 V Tubular C-8 17A155 350-430 mmf Trimmer C-9, C-10 17A109 2.5-35 mmf Dual Trimmer C-11 47X472 40 mmf Silvered Mica C-12, C-18 D66403 .04 mf 400 V Tubular C-13 47X466 68 mmf Molded C-14 47X481 286 mmf Silvered Mica C-15, C-16 Part of T-2 (1st I -F Coil Assem.) C-19, C-23 47X463 47 mmf Molded C-20, C-21 Part of T-3 (2nd I -F Coil Assem.) C-22 47X471 68 mmf Molded C-24 D64403 .04 mf 400 V Tubular C-25 D66502 .005 mf 400 V Tubular C-26 D67104 .10 mf 400 V Tubular C-27 D64253 .025 mf 400 V Tubular C-28 D66402 .004 mf 400 V Tubular C-29 D66103 .01 mf 400 V Tubular C -30A 40 mf 450 V C -30B 45X346 40 mf 450 V Three Section Electrolytic C -30C 20 mf 25 V C-31 F66402 .004 mf 600 V Tubular C-32 47X505 470 mmf Molded C-33 866503 .05 mf 200 V Tubular C-34 47X476 100 mmf Molded C-35 D67204 .2 mf 400 V Tubular
ON-OFF SWITCH AND VOLUME CONTROL
T
i
RESISTORS OHMS WATTS
', R-7 885225 2.2 meg. 0.5 Carbon R-2, R-4 C84393 39 K 1.0 Carbon R-3 B84393 39 K 0.5 Carbon R-5 B84222 2200 0.5 Carbon R-6 885105 1 meg. 0.5 Carbon R-8 885473 47 K 0.5 Carbon R-9 884153 15 K 0.5 Carbon R-10 36X357 .5 meg. Volume Control & Switch
R-11 885106 10 meg. 0.5 Carbon R -12,R-16 885474 470 K 0.5 Carbon R-13 884333 33 K 0.5 Carbon R-14 884823 82 K 0.5 Carbon
*R.15 40X277 3 meg. Tone Control & Radio Phono Switch
R-17 C84271 270 1.0 Carbon R-18 43X213 2.0 0.5 Wire -wound R-19 D84182 1800 2.0 Carbon
DIAL AND DRIVE ASSEMBLY 6X21 Rubber Grommet Mtg. Gang Condenser 20X329 Cond. Cushion Stud! 26A443 Dial Bracket Assembly complete with Spacers, Pulleys,
Diffusers and Dial Background less Dial Glass 58X676 Dial Glass 26A444 Idler Bracket Assembly 26X486 Drive Shaft 19X192 "C" Washer (for drive shaft) 15X163 Pointer 10X38 Drive Cord Assembly or 50" Cord 28X113 Drive Cord Tension Spring 7X199 Pilot Light Socket Assembly
No. 47 Pilot Light 4X353 Escutcheon
TRANSFORMERS AND COILS T-1 9A1812 T-2 9A1814 T-3 9A1815 T-4 26A449 T-5 9A1813 T-6 53X282 T-7
"D" Range Antenna Coil Assembly 1st I -F Coil Assembly 2nd I -F Coil Assembly "B" Range Loop Antenna Assembly "B" and "D" Range Oscillator Coil Assembly 117 Volt, 60 Cycle, Standard Power Transformer Output Transformer (See Miscellaneous)
SUBSTITUTE PARTS The following parts are used in some receivers only. Check part numbers on old part before ordering and order part originally used in receiver.
*40X282 Tone Control (Substitute for 40X277) *25X1539 Radio Phono Switch Lever (Use with 40X282) *24161 D.P.D.T. Switch (Use with 40X282)
BAND SWITCH
TONE CONTROL AND PHONO -RADIO SWITCH
TUNING KNOB
CJohn F. Rider
www.americanradiohistory.com
?AGE 17-8 WELLS-GARDNER
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WESTERN AIR PAGE 17-1
©John F. Rider
www.americanradiohistory.com
\\ PAGE 17-2 WESTERN AIR
dclse.,ratrcd Model 581 WESTERN AIR PATROL
L-- - BAND -SWITCH SHOWN
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525 TO 1750 KC.
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©John F. Rider
www.americanradiohistory.com
WESTERN . AUTO PAGE 17-1 WESTERN AUTO SUPPLY CO. Model -17)-1644
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ad 0 G : Ñ m ß. 0 0
â'. :r CD 0 m
OpO.d m 3 d O a) a) O a, b
(J Ein 4:1) al .- G
ai a ,--fC ,, E .[ t, O .r+ 1 P.
0 `+-1 `d +? .p co zò v ..:
.J 0 m 4
g ~0i® LÓPa
. 0 v-P AA.nc-
fr z
a
O. U
©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-3
WESTERN AUTO SUPPLY CO. Models D-1747, D-1748
f-- ºººLoº.rfei F -(0000 6úC0 ` . aY
o
Vgg
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-=1F-II -IHa
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©John F. Rider
www.americanradiohistory.com
IAC:GG S7G1r%f7e/liati(J.1111
PAGE 17-4 WESTERN AUTO Models D-1747, D-1748 WESTERN AUTO SUPPLY CO.
T21
R. F. AMR 6SK7
Si REA
32
GANGED _ _199C
T1
C2 C5 R2
BAND -SWITCH SHOWN AT i ST POSITION. BROADCAST BAND
540-1.600 KC
C16 CL
R.F. AMR (kSK7 51
REAR
33 PNONO1 RADIO d
52 REAR
2ND.SECT.
29C
AVG ---GANGED -
PHONO.,
T5 R2 RADIO
C5 S3
R21
CG
B+
BAND -SWITCH SHOWN AT 2ND POSITION CLOCKWISE
49 METER BAND 5.96 - 6.19 MC.
R. F. AMP.
6SK7
Rl
C5
--o- 2
REAR 2NO.SECT
R2
C11
R21
8+
C 29C
33 PHONO I
RADIO
ß 5+
T6
R21
BAND -SWITCH SHOWN AT 3RD POSITION CLOCKWISE .
31 METER BAND. 9.1 - 10 MC.
B+
5+
GANGED -1
/ 52 C10
REAR1 131 SECT.
r --GANGED
C6
10
CO
52 , C10
REAR 13T. SECT.
C9
C9
AVC
C12
R4
AV C
Cl?
CONVERTER 65A7
S2 FRO
2ND.SEC
115
CONVERTER 65A7
S2 FRONT -o--.
2ND.5ECT..
C13
REAR 1ST. SECT
R4
AVC
C13
S2 5+ REAR _.d
2NC SECT
-GANGED
T16
114 2ND.SECT.
6
2ND SECT.
32 FRONT
I C14
-GANGED
T11
B+
32. REAR
T16
b
,.. --GANGED
©John F. Rider
www.americanradiohistory.com
te schematics rr WESTERN AUTO PAGE 17-5
WESTERN AUTO SUPPLY CO. Models D-1747, D-1748'
C
T2
AVC
52 REAR
2ND. SECT.
R. F. AMP 6SK7
R2
C29C
C11
BAND -SWITCH SHOWN AT 4TH POSITION CLOCKWISE.
25 METER BAND 11.45 - 12.16MC.
R.F. AMR 6SK7
51 REAR
C4
13
R8 AVC
CS
53 PHONO RADIO b
52 REAR
2 ND. SECT. o
1C29
l R21
=--
R2 $3 PHONO. RADIO
9+
BAND -SWITCH SHOWN AT 5TH POSITION CLOCKWISE .
19 METER BAND 14.94 -15.46 MC.
5+
e+
T10
C9
52 REAP
2ND. EC0
y
r ---GANGED
T6
C6
C10
R
TR
AVC
52 REAP
1ST. SECT.
c
,-GANG ED
T6
C6
T9
CONVERTER 6SA7
E/
R5 S2 REAR
2NND. 9FCT.
C12- S2 FRONT
2ND.SECT GANGED-
C13--' I ie I 113
CONVERTER 6SA7
R4
AVC
C12
jR6 Z
RS
52 FRONT
2ND. SECT o-
C13T
T12
S2 REAR 2ND. SECT. o
©John F. Rider
www.americanradiohistory.com
PAGE 17-6 WESTERN AUTO Models D-1747, D-1748 WESTERN AUTO SUPPLY CO.
ALIGNMENT PROCEDURE
MECHANICAL ADJUSTMENT-The core tuning bar (see illustra- ELECTRICAL ADJUSTMENT-To align the set make the follow- tion of iron cores) and dial pointer must be adjusted mechani- ing preliminary adjustments: Set the tone control for treble cally before any electrical alignment is attempted. Rotate the tone; set the volume control at maximum; connect the ground manual tuning control until the core bar is farthest from the post of the signal generator to the radio chassis; connect the coils. For proper adjustment the bar should be approximately output meter across a 3.2 -ohm output load; and allow the re - 1/32 of an inch from the two rod guide angles. ceiver and signal generator to warm up for several minutes.
With the core bar in this position, adjust the dial pointer to Align the set according to the sequence given in the chart. coincide with 1600 kc on the dial scale. The indicated dummy antenna is to be connected in series be-
tween the signal generator output lead and the receiver. Adjust Rotate the cores of each of the three broadcast coils (see illus- the set for maximum output; reduce the input as needed to
tration) until the end of the coil is 1-5/32" from the end of the keep the output near 1.3 volts. coil form. Rotate the three 9 -mc cores until this dimension is Locations of all trimmers and coils are shown elsewhere 1-1/16" for these coils. After these adjustments have been made, in this manual. After adjustment, seal the coil cores with col - the unit can be aligned electrically. lodion or a similar substance (do not use cement).
BAND SIGNAL GENERATOR DIAL ADJUST TO SWITCH SETTING Frequency Coupling
Capacitor Connection to Radio POINTER SETTING
MAXIMUM OUTPUT (in order shown)
Broadcast (for I. F.) 455 kc .1 mf Grid (pin 8)
of converter (6SA7) 1600 kc Trimmers on output and input I. F. cans
Broadcast
1600 kc 200 mmf Antenna lead 1600 kc BC Osc. trimmer C15 BC R. F. trimmer C8 BC Ant. trimmer C2
1400 kc 200 mmf Antenna lead 1400 kc Rotate cores of
BC R. F. coil T7 and BC Ant. coil T1
31 Meter 9.6 mc 400 ohms Antenna lead 9.6 mc 9 mc Osc. trimmer C14 9 mc R. F. trimmer C9 9 mc Ant. trimmer C3
49 Meter 6.1 mc 400 ohms Antenna lead 6.1 mc 6 mc Osc. coil T14
6 mc R. F. coil T10 6 mc Ant. coil T4
25 Meter 11.8 mc 400 ohms Antenna lead 11.8 mc 12 mc Osc. coil T13 12 mc. R. F. coil T8 12 mc. Ant. coil T2
19 Meter 15.2 mc 400 ohms Antenna lead 15.2 mc 15 mc. Osc. coil T12 15 mc R. F. coil T9 15 mc Ant. coil T3
NOTE: Before take from carriage. removing chassis, off escutcheon and pull pointer pointer © PLACE POINTER CARRIAGE AS FAR AS IT WILL
. GO TO THE LEFT. THEN WRAP STRING ONCE AROUND.
1 :t 1 Hili
FINISH 0lß l ,.
AND OFO ,,,,,,--7:\;124'-
I.I
IIII M
COIL ale FORM WHEN WINDING
SECOND TURN ON START PULLEY
PULLEY, LOOP 3 TURNS _ '1 l' ALL MC
COILS
STRING THRU SLOT AS SHOWN. ' ALL BC
COILS / _ _ )II
SET SCR W O TURN TO EXTREME G
COUNTER -CLOCKWISE POSITION OUTPUT I.F. -,
(TRIMMERS ON INPUT I.F. j
(TRIMMERS ON TOP) I I TUNING SHAFT
.---, f
C2 BC ANT, TRIMMER
11137 2.1=1 ANT \TRIMMER
WHEN FINISHED WITH STRINGING, SPRING MUST BE rFROM IDLER AS SHOWN. TO DO THIS
PULLEY. / aO LOOSEN SET SCREW ON
O Ó O e 0 O 0 `" Ia Tu Cv eTa
(Q O US Í%.) T2.
IS)
OS HOLD TUNING SHAFT FIRM IN POSITION INDICATED AND TURN PULLEY BY HAND UNTIL SPRING IS = AWAY FROM IDLER.
Is
© TIGHTEN SET SCREW. NOW SPRING SHOULD TRAVEL BACK AND FORTH WITHOUT TOUCHING THE IDLERS.
0 REPLACE CHASSIS IN CABINET. REPLACE POINTER ON CARRIAGE. TUNE IN
12MC OSC BC RF vMc RF a MC
SMC OSC BC OSC ISMC RF ANT
ISMC OSC 12MC RF 12MC ANY
BMC OSC RUC RF ISMC AN I
STATION OF KNOWN FREQUENCY. HOLD TUNING SHAFT FIRM AND SLIDE POINTER TO CORRECT POSITION ALONG DIAL.
OB GLUE POINTER TO STRING.
Coils and Trimmers Replacement of Drive Cord
©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-7
WESTERN AUTO SUPPLY CO. Models D-1747, D-1748
REPLACEMENT PARTS LIST When ordering parts, specify part number, model number, and series
Ref. No. Part No. Description
REMOVABLE TUNER ASSEMBLY
CAPACITORS * Cl B -8F-10767 .002 mf, 500 volts, 10%, mica C2, C3 124143 Dual, broadcast (67-123 mmf) and
9 me (95-175 mmf) ant. trim- mers
470 mmf, 500 volts, 10%, mica .1 mf, 200 volts, +20%-10% .1 mf, 400 volts, +20%-10% 10 mmf, 500 volts, 10% silver
mica Broadcast RF trimmer (120-220
mmf) 9 me RF trimmer (60-110 mmf) 47 mmf, 500 volts, 10%, mica 200 mmf, 500 volts, 3%, silver
mica 9 me oscillator trimmer (7-35 mmf) Broadcast oscillator trimmer
(15-27 mmf)
RESISTORS * R1, R4 1 megohm, 1/2 watt, 20% R2 270 ohms, 1/2 watt, 10% R3 4700 ohms, 1/2 watt, 10% R5 47 ohms, 1/2 watt, 10% R6 27,000 ohms, 1/2 watt, 10% R7, R8 22,000 ohms, 1/2 watt, 20% R9 560 ohms, 1/2 watt, 10% R10 47,000 ohms, 1/2 watt, 20% R11 3.3 megohms, 1/2 watt, 20% R12,S3 Tone control (1 megohm) and
radio -phone switch R13 120,000 ohms, 1/2 watt, 20% R14,R17 100,000 ohms, 1/2 watt, 10% R15 1 megohm, 1/2 watt, 20% R16 4700 ohms, 1/2 watt, 10% R18, R19 470,000 ohms, 1/2 watt, 20% R20 330 ohms, 1 watt, 10% R21 12,500 ohms, 3 watts, 10% R23 15,000 ohms, 1/2 watt, 20% R24, S4 Volume control (500,000 ohms)
and on -off switch R25 C -9B1-35 4.7 megohms, 1/2 watt, 20%
COILS (complete with cores) T1 111195 Broadcast antenna coil T2 111191 12-ntc antenna coil T3 111192 15 -mc antenna coil T4 111189 6 -mc antenna coil T5 111190 9 -mc antenna coil T6 10959 9 -mc RF coil T7 10962 Broadcast RF coil T8 10960 12 -mc RF coil T9 10961 15 -mc RF coil T10 10958 6 -mc RF coil T11 110157 9 -mc oscillator coil T12 110159 15 -mc oscillator coil T13 110158 12 -mc oscillator coil T14 110156 6 -mc oscillator coil T15 110161 Broadcast oscillator coil T16 108177 Input IF coil complete in can
(Range of trimmers: 110-210 mmf) T17 108176 Output IF coil complete in can
(Range of trimmers: 80-140 mmf; TI8 B -12C-10234 Output transformer T20 104202B Power transformer
MISCELLANEOUS
C4, C10 B -8F3-121 C5 C -8D-10771 C6, C11 C -8D-10760 C7 B -8F5-101
C8 A -8G-7205
C9 A -8G-7206 C12 B -8F3-109 C13 B -8F-10763
C14 124145 C15 124144
C -9B1 -3I C -9B 1-55 C -9B1-70 C -9B 1-46 C -9B 1-79 C -9B1-21 C -9B1-59 C -9B1-23 C -9B1-34 125180
C -9B I-87 C -9B1-86 C -9B1-31 C -9B 1-70 C -9B1-29 C -9B2-56 10662 C -9B 1-20 A -10A-10586
Si B -20A-10964 S2 B -20A-10965
121210 121171 117907 117798 120393
131251 B -2C-7245 A -2J-7439
Band switch, antenna Band switch, oscillator and RF Socket, molded, for 6SA7 Socket, laminated, for 6SK7GT Tuning shaft Pinion gear on tuning shaft Spring, intermediate link, under
ends of treadle bar Washer, "C," on slug tuning bar Gear segment Spring clip, for coils
Ref. No. Part No. Description
121200 121279 A -15B-11538 121280
121199 121210
121273
SOCKETS Socket, 4 -terminal, for loop antenna Socket, 5 -terminal, for tuner Socket, 4 -terminal, for speaker Socket, I -terminal, for phono pick-
up Socket, 2 -terminal, for phono motor Socket, octal, molded (all tubes
except 6SK7, IF amp.) Socket, octal, laminated (for 6SK7,
IF amplifier)
MISCELLANEOUS T19 C -18B-13181
A -19A-11539 T21 A-14MA-11066-3 T22 A -16A-11113
A -19A-11322 107401 10724 B -6D-10949 10794
107-259 B -2G-10588
A -2J-11041 1121035 B -53A-10989 120377 107266 1121040-14 1121040-41 1121033-14 1121033-41 128-787-14 128-787-41 B -47A-10842 A -2L-11293 112808 131316B 134134
134126
134125
A -25A-7619 B-202-10475 A -2J-7176 A -2J-7627-1 120366 121281 128-505-14 128-505-41
128-504-29 131210
Speaker, 8 -inch, electrodynamic Plug on speaker leads Loop antenna (ribbon only) Choke on loop terminal board Plug on loop antenna leads Phono motor cable assembly Connector, for phono pickup leads Dial scale Dial light, 6-8 volts, type T-44 (2
used) Dial light shield
Dial pointer Pointer spring Pointer carriage String for dial pointer Spring for dial pointer string Line cord and plug (9 feet) Side escutcheon, walnut Side escutcheon, mahogany Bottom escutcheon, walnut Bottom escutcheon, mahogany Knob, walnut, for all controls Knob, mahogany, for all controls Socket assembly for pilot lite Bandswitch link Station call letters Washer "C", for 9 -mc coils Grommet for core mounting (all
broadcast and 9 -mc coils) Grommet for coil mounting (broad-
cast RF and antenna coils) Grommet for coil mounting (broad-
cast oscillator coil) Grommet for all 9 -mc coils Pushrod assembly Cam locking spring Retainer spring Spring, pushrod return Plug, 5 -prong Pushbutton sleeve section, walnut Pushbutton sleeve section, mahog-
any Pushbutton, clear end piece Washer "C", on end plate
MAIN CHASSIS CAPACITORS*
C16 C -8F3-12. 470 mmf, 20% ,mica C17, C19 C -8D-10774 .02 mf, 400 volts, 20% C18 C -8D-10771 .1 mf, 200 volts, +20%- 10% C -20-A 129165B Dual, 50 mmf each section, mica, C20 -B 20% C21 C -8D-10813 .05 mf, 400 volts, 20% C22 C -8D-10935 .005 mf, 600 volts, +40%-15% C23 C -8F3-10 220 mmf, 20%, mica C24 C -8D-10770 .05 mf, 200 volts, 20% C25 C -8D-10788 ,004 mf, 600 volts, 20% C27 C -8D-10992 .03 mf, 200 volts, 20% C28 C -8D -1P'85 .006 mf, 600 volts, 20% C29 -A, 119109 Electrolytic, 15 mf x 450 volts, 15 -B, -C mf x 450 volts, 10 mf x 350 volts C30, C31 C -8J-11321 .02 mf, 600 volts, 20% *The values of the resistors and mica capacitors listed above (except C13) are based on RMA standards. Due to conditions beyond our control some receivers have been shipped with components of pre -standardized values. This receiver will operate equally well with components of either group
©John F. Rider
www.americanradiohistory.com
PAGE 17-8 WESTERN AUTO 172-odel D2621 WESTERN AUTO SUPPLY CO.
EXTERNAL ANTENNA
GR
LOOP ANT.
Am .0, T400
1000
SAID
/r\
AVG
TS
IN3GT R. F. AMP.
MAN- I MEG
LEAD OUT OP TOP.
PLT.
r-- ro
MMF
L___
DOT,HOLE OR SLOT
D+ Q
VIEW OF COILS. TERMINAL ENO.
GRID
Q
05 T zoo
IA7GT CONVERTER
MOTES I
ANODE. O VOLTAGE W S MEASEO WITH 1) A 00 OHMS PER VOLT D.C. METER
ETWCEN CHASSIS ANO POSITS DESIGNATED.
CAPACITOR VALUES IN NFU. UNLESS OMERWISE INDICATED.
RESISTOR AND COIL VALUE IN CAMS.
WHORE VALUE OF COLS IS NOT SHOWN, RESISTANCE IS LESS THAN ONE OHM
AU. RESISTORS ARE RATIO AT I/E WATT, A20%
IN5GT IF AMP.
IMEG
iH5GT S H9. DET. A.V. C.
8,156 A00.
SERVICE PARTS LIST MODEL D2621
Order Parts by Model No., Part No., Series and Issue
3Q5GT OUTPUT.
.114e0
00470 r > 16
2.9
T7
PM SPEAKER 3.2 CNMS
0 SI f ON VOLUME T CONTROL
r 1 - \1 A' _. E+SLUE
ARTO ALL \ TOP VIEW FILAMENTS OF PLUS
I.F. 455 KC.
Part No. Name 25566 Bearing (for wood pulleys) 25597 Coil, R. F. (T3) 25598 Coil, Oscillator (T2) 25600 Condenser, Electrolytic 16 Mfd, 150 V. (C4) 25592 Condenser-Tuning, 3 Gang, less Tuning Shaft (Cl, C2, C3)
25367 Control, Volume, with On -Off Switch (R1) 25767 Cord, Dial, complete with Spring and Pointer Coupling 25696 Knob, Tuning or Volume 25609 Loop (TI) 25612 Plug, Battery Cable 4 Prong
Pointer, Dial - See "Track -Pointer" 25336 Pulley-Wood 25615 Scale, Dial 25766 Shaft-Tuning with "spool" pulley 25620 Socket-Tube 25593 Speaker 5" P. M. Dynamic (T7) (less Transformer) 25319 Switch, Economizer (S2) 25788 Track, Pointer, complete with Brackets and Pointer 25621 Transformer I. F. Input (T4) 25622 Transformer I. F. Output (T5) 25594 Transformer-Speaker Output (T6)
Reference Numbers such as (C4) are shown on circuit diagram.
Parts not listed above, may be ordered by part number as shown in the picture and by com- plete description, send a sketch if possible. Order parts from your local Western Auto Store.
We cannot supply speaker cones. We can replace or repair a damaged speaker for a nominal price if it is returned to our factory, transportation charges prepaid.
©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-9
WESTERN AUTO SUPPLY CO. Model D2621r
'O S. . o W CI+ q ~C G ^ u w sr , cd t c1 7 +> i 40 I Á.
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`1i\u ' " á L.
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N % r Qi , . 6) V1 u fil id .-p 0 E d) p¢ ,.a . z E., , Ob -di-. ó c. 5 2 4.. Li) v o zH o ó á - _- Cg v u Ç w CO N
m 2 o b0 Ó aÔ ti; ro x 4.) ...e u i "b'ú . O U..O aV+ ..0
0 3 C ú ó; H b.Ñ W F+ 3
`b ó m 01 ó a z m
do . v U
Ñ
á m ÿ W w eN
..;; LÚ
.. w N-. x á LO)
b u[ p - N Ó E E- > 3 _-
o"° Q á á z ¢ E- w
> á4.°, ó -OwO ¢E' 1 zb ,4Q-dpwÚ ÿ á ; -d ó U o
°' v áWO z 9 Ñ
ó L. bb %...r
á p N. a I x w
EWE--.,
W W ( á, N+ a5 E- a 3 N oG
ó r~ ó z ¢ ¢ . a , . ÿQt/) p á..á S ~ qk ~
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p z W ú Z a o > s >~ °) o p `° w" O z 0 Ó o" Hi aV .. > f ¢ (~ :~ w m ::
P '1
®John F. Rider
www.americanradiohistory.com
PAGE 17-10 WESTERN AUTO Model D2623 WESTERN AUTO SUPPLY CO.
RI, R8 & RIO
R2 R3 R4, R7
ANTENNA
A
L
GROUND
6.9MMF C20
6SK7 15O .05 R. F. AMP. R2 C5
V h7, V `Lt SOMMF
/ V CIA C7
LINE SWITCH
14
C3
5 C4
.05 C6
220K RI
TO. 7 OF ALL TUBES EXCEPT 5Y3GT
6SA7 MIXER
27K R3
CI
50MMF CB -
22K RS
L3 CI
6SK7 I.F. AMP
; I/ Ca b .05 O b G 10
C9
Il< R6
100K R7
05 T CIO
2
6S07 OET. & AUOIU
I MEG
1
M50 MF C12
220 10MEG R8
R9
50K CI I T * r
250M
.05 C13
VOL.CONT; 500K
5Y3GT RECTIFIER
SOCKET VOLTAGES Chassis, Bottom View
All voltages are measured with a 1000 ohm per volt meter on the 150 volt scale, with no signal. To obtain an accurate voltage check the A.C. line voltage must be 117 volts. Where no voltage is shown the voltage is O or cannot be read with this type of volt- meter.
Circuit Part Reference No.
SPEAKER T3
I 2W
16 R14
16
450 450 C19 Cte I.F.
Description
CONDENSERS CiA, C1B, C1C B19-186 Variable condenser C2 200 MMF mica condenser
(on Loop) C3, C4, C9, C16 A16-152 .05 MFD. 200 volt tubular
condenser C5, C6, C10, C13 A16-158 .05 MFD. 400 volt tubular
condenser C7, C8 A15-175 50 MMF mica condenser C11, C14, C15 A16-156 .01 MFD. 400 volt tubular
condenser C12 A15-176 250 MMF. mica condenser C17 A16-153 .005 MFD. 600 volt tubular
condenser C18 A18-279 16 MFD. 450 volt electroly-
tic condenser C19 A18-274 16 MFD. 450 volt electroly-
tic condenser C20 A84-71 6.9 MMF. condenser
RESISTORS A60-667 220K ohm 1/3 watt resis-
tor A60-686 150 ohm. 1/3 watt resistor A60-692 27K ohm 1 watt resistor A60-671 100K ohm 1/2 watt resistor
R23
455 KC.
á PART OF 12
R5 R6 R9
R11
R12 R13 R14
005 C17
560 R12
05 016
.01 C14
VVY 220 K
R10
TONE CONTROL
470K RII .01
C15
A60-659 A60-675 A60-663
A60-662 tor A60-701 A60-700 A60-699
6K6 POWER OI ITPtfT
22K ohm 1/3 watt resistor 1K ohm 1/3 watt resistor 10 megohm 1/3 watt resis- tor 470K ohm 1/3 watt resis-
560 ohm 1 watt resistor 82K ohm I watt resistor 1000 ohm 2 watt resistor
COILS Li B10-451 Antenna coil L2 B10-452 R. F. coil L3 A10-446 Oscillator coil T1 B10-412 1st I.F. transformer T2 B10-444 2nd I.F. transformer
MISCELLANEOUS T3
T4
Output transformer (Part of Speaker)
C80-223 Power Transformer A69-169 ON-Off Switch A26-123 Tone Control A24-169 Volume Control A84-41 Dial drive shaft and pulley
Assembly B79-341 61/4" P.M. Speaker S84-54 Loop Antenna Assembly
©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-11
WESTERN AUTO SUPPLY CO. Model D2623
Volume control-Maximum: all adjustments. Tone Control-Treble: Full Clockwise Rotation. Connect ground lead of signal generator to radio
chassis.
Connect dummy antenna in series with output lead of signal generator.
Connect output meter across voice coil of speaker.
The following equipment is necessary for proper alignment: Signal generator that will provide the test frequencies as listed. Output meter. Non-metallic screwdriver. Dummy antennas-.1 mfd., 00025 mfd.
Position of
Variable
Generator Frequency
Dummy Ant. mfd.
Generator Connections
Trimmer Adjustment
Trimmer Function
Minimum Capacity (Fully Opened)
455 K.C. .1 6SA7 Grid (Stator of C1B
T1 T2 I. F.
Minimum Capacity (Fully Opened)
1725 K.C. .00025 * Ant. Terminal on Loop
C1C Osc.
Tune in signal From Generator
1500 K.C. .00025 *Ant. Terminal on Loop
C1B R. F.
Tune in signai From Generator
1500 K.C. .00025 *Ant. Terminal on Loop CIA Ant.
Be sure coupling link is in correct position for ex- ternal antenna operation. See illustration below (Fig. 4).
Repeat the above alignment procedure as a final check.
With an output meter connected across the voice coil of the speaker, the output meter reading for 1 watt is 1.25 volts using a signal which is modulated 400 c.p.s.
Chassis, Top View
4":"(3 CONNECT ANTENNA - LINK INLEAD
HERE POSITION FOR EXTERNAL ANTENNA
The tube complement of this re- ceiver consists of the following:
1-6SK7-R.F. Amplifier
Amplifier
1-6SQ7-Det. AVC-Audio 1-6K6-Power Output
1-5Y3-Rectifier GRO L A ANT
BACK & L OP ANTENNA
ON-OFF
ANTENNA and GROUND CONNECTIONS LINK IN THIS POSITIONFOR
RECEPTION WITH LOOP
TUNING SHAFT
CONNECT GROUND WIRE HERE
©John F. Rider
www.americanradiohistory.com
PAGE 17-12 WESTERN . AUTO Model D2642 WESTERN AUTO SUPPLY CO.
c12T LI
12SA7 J
J
I.F. 455 KC
L4 2
3
I /
C2 C3
114 C13b T
12SKT
PHONO- RADIO__ 1
-Z -J I Ì II
OFF ON
12607
47 MAZDA
(9CII CI7 y
(-1
s
CHASSIS GROUND 4-
50L6GT
35Z5GT
00 © tI 00 0 12S07 125Á7 125K7 50L6OT
RI3 RII
`TI
álo®
RI2
C9 C9 C9 a.- .-b-c .I
R7
CIO
ALTERNATE FILTER CIRCUIT USED ON EARLIER MODEL.
TO PIN L5 B
TOB+
3525 GT
020 C20 a b
TO B-
NOTE: Connect points "A" and "B" with jumper when testing chassis with phono plug removed.
DIAL STRINGING AND POINTER SETTINGS POINTER EXTREMES
INDICATED NY HOLES IN DIAL BACKGROUND
600 KC. SETTING INDICATED NY HOLE IN
DIAL BACKGROUND
1400 KC. SETTING INDICATED BY HOLE IN
DIAL BACKGROUND
NOTE' DIAL BACKGROUND SNOW. TRANSPARENT TO CLARIFY STRINGING -42.0F CORD NEOUIRED-GANS ISIS CLOSED POSITION
POKER SUPPLY
This receiver is designed to operate ONLY from an AC (Alternating Current) power supply line of 110-120 volts, 60 cycles.
The line plug should be tried both ways and left in the positiòn that gives minimum hum.
OSCILLATOR COIL
((
0II 2 TAP
END
TOTAL 5 OHMS
45 ONMS
2
TRUETONE TUBES USED
12SA7-1st Det. Osc. 50L6GT-Beam Power Output 12Sñ7-I. F. Amplifier 35Z5GT-Rectifier
12SQ7-2nd Det.-A. V. C.-lst Audio
RADIO RECEPTION DURING PHONO
It is normal for strong radio stations to be heard faintly when switched to PHONO, unless the radio dial is tuned between stations. This interference can sometimes be reduced by moving condenser C4 as far from the 12SQ7 socket and as close to the chassis as possible. Also move the I.F. transformer wire" con- nected to pin 4 or 5 of 12SQ7, as far from condenser C4 and as close to the chassis as possible.
VOLTAGE DATA
35Z5GT
87 A.C.
12SA7
110 AC.
u 0 A.C.
120 B2 A.C.
O 12AC.
94 1.2
22 AC. 'ra , 94
0
01
o
12SK7
0 94
AC.
86
FRONT OF CHASSIS
94 50L6GT
12S07
0 12 AC.
0 X -YOLow(- CONTROL
Bottom View of Chassis, Showing Voltages
All readings made between Tube Socket Terminals and Switch Lug on volume control (Point "X" on drawing). Measured on a 117 Volt A.C. line. Volume control full on. Dial tuned to low frequency end, no signal. Voltages obtained on Vacuum Tube voltmeter. A second voltage reading is shown made with a 1000 ohm - per -volt meter when use of this instrument would result in appreciably lower readings.
©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-13
WESTERN AUTO SUPPLY CO. Model D2642
Step Dummy Antenna
between Radio and Signal Generator
Connect Signal Generator
to
Signal Generator Frequency
1 250 mmfd. Condenser
Gang Condenser Antenna Stator 455 %C.
2 250 mmfd. Condenser
Gang Condenser Antenna Stator 435 KC.
3 250 mmfd. Condenser
Gang Condenser Antenna Stator 1630 1LC.
4 No actual connec- tion between set
and generator.
Loop radiator (or place pickup lead from genera- tor close to loop of set to obtain adequate signal).
1400 ICC.
Gang Condenser Setting
Trimmers Adjusted for
Maximum Output
Rotor full open (Plates out of mesh) C and D -2nd. I.F.
Rotor full open (Plates out of mesh) A and B -1st I.F.
Rotor full open (Plates out of mesh) E-Oscillator
Set Gang to tune in
Generator Signal F-Antenna (See Note)
NOTE: Antenna trimmer "F" must be aligned after chassis and loop are mounted in the cabinet. This adjustment can be made by lifting up the top cover and removing the plug button which is directly above trimmer "F."
IMPORTANT-Check to see the ' dial pointer reaches each end of dial scale when Station Selector Control is turned from one end to the other.
Volume control-Maximum for all adjustments.
Connect radio chassis to ground post of eignal generator with a short heavy lead.
Connect output meter across voice coil of speaker. Allow chassis and signal generator to warm up for several minutes.
Use lowest Output setting of Signal Generator capable of producing adequate Output Meter indication and then proceed in the following sequence.
Jt PILOT LIGHT 1147
fl
REPLACEMENT PARTS
BACK OF CHASSIS
Symbol
Cl C2
C3
C4 C5 C6
C7
C8
C9a C9b C9c C10 C11 C12 C13a CI 3b C14 C15 C16 C17 C20a C20b
Symbol
R1
R2
R3
R4
R5
R6
R7
CONDENSERS Description Part No.
Paper, .1 mfd., 200 V. Mica, 50 mmf. ±20% Paper, .02 mfd. 400 V. Paper, .01 mfd. 400 V. Paper, .01 mfd. 400 V. Mica, 250 mmf. ±20% Mica, 500 mmf. ±20% Paper, .02 mfd. 400 V. Elect.,
30 mfd. 150 V. 30 mfd. 150 V.
} 67A8 Elect., 20 mfd. 150 V. JJJ
Paper, .2 mfd. 400 V. Paper, .05 mfd. 400 V. Paper, .005 mfd. 600 V.
6481-30 6587-11 6481-24 64B1-25 6481-25 6587-22 6587-27 6481-24
64A2-1 64B1-22 64B1-12
Gang Condenser (2 Section) 68A2
Mica, 20 mmf. +10% Paper, .01 mfd. 400 V. Paper, .01 mfd. 400 V. Paper, .2 mfd. 400 V. Elect., 30 mfd. 150 V.1. Elect., 50 mfd. 150 V.
RESISTORS Description
22,000 ohm ±10%, 1/2 W. 1 megohm +10%, 1/2 W. 10 megohm ±10%, 1/2 W. 220,000 ohm ±10%, 1/2 W. 470,000 ohm ±10%, 1/2 W. 150 ohm ±10%, 1/2 W. 150,000 ohm ±10%, 1/2 W.
65 B5-5 6481-25 6481-25 64A2- 1
67A3
Part No.
6068-223 60 B8-105 60B8-106 60B8-224 60[38-474 60B8-151 6088-154
RESISTORS (Cont'd) Symbol Description
RB '/2 megohm Volume Control and Switch
R9 47,000 ohm ±10%, 1/2 W. R10 27,000 ohm ±10%, V2 W. R11 150 ohm ±10%, 1 W. R12 1,000 ohm ±10%, 1 W. R13 33 onm ±10%, 1 W.
Part No.
7583-2 60B8-473 6068-273 60828-1 60828-2 60828-3
TRANSFORMERS AND COILS Symbol
L1
L2
L3
14
L5
TI
Description
Antenna, Loop Transformer, 1st I. F.
Transformer, 2nd I. F.
Oscillator Coil Choke Coil (Filter) Transformer, Output *When ordering, specify all
numbers on speaker and transformer.
Part No.
6986 7283 7284 69A5 74A1
PHONOGRAPH PARTS Description Part No.
Centerpost G400Al2 Crystal Cartridge .409A1 Idler Wheel (40783 Motor) G400A23 Idler Wheel (40781 Motor) G400A57 Idler Wheel (407B2 Motor) G400A59 Motor, 60 cycle 115 volt, A.C.
(Tyres 40781 and 407132 also used) 407B3
MISCELLANEOUS Description
Background, Dial
Part No.
X22C3-1 Buttons, Snap 13A1-2-47 Cord, Dial (62") 50A1-3 Drum and Hub Assembly A1012 Escutcheon, On -Off 26A6-1 Escutcheon, Radio -Phono 26A6-2 Grommet, Rubber (Gang Mtg.) 12A1-2 Knob 33A10-2 Pilot Light #47 81A1-8 Pilot Light Socket and Leads 82A2-3 Plug (Phono Leads) 88A3-5 Plug, Button 13A2-1-57 Plug, Alden (Motor Leads) 88A8-1 Plug Shell (Phono Leads) 88A3-4 Pointer 25A13-1 Pulley, Fibre Dial 17A1-3 Scale, Glass Dial 21827-1 Shaft, Tuning 28A1-1 Socket and Leads (Alden) 89A6-1 Socket, Octal Tube 87A10-2 Speaker, 5" PM and Output
Transformer 78813-1 Spring, Dial Cord Tension 19A1-3 Switch, SPDT (Radio -Phono) 77B1-11 Switch, SPST (On -Off) 7781-44 Washer, Flat Insulating 5A1-6 Washer, Offset Insulating 5A2-5 Washer, C 4A4- 1
Washer, Spring 4A6-3-0
©John F. Rider
www.americanradiohistory.com
PAGE 17-14 WESTERN AUTO Model D2661 WESTERN AUTO SUPPLY CO.
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©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-15
WESTERN AUT SU ' PLY CO. odel D2661
ALIGNMENT PROCEDURE (Refer to Chassis and Coil Views)
Output meter across 3.2 -ohm output load. Align for maximum output. Reduce input as needed to keep output near 0.4 volts.
Volume control at maximum for all adjustments. Connect ground post of signal generator to radio chassis.
SIGNAL GENERATOR TUNER
SETTING
ADJUST FOR MAXIMUM OUTPUT
(m order shown) Frequency Dumm Antenna Connection to Radio
455 kc .1 mf Grid (top cap) of 1A7GT Iron cores all the way out
Trimmers on output and input I.F. cans
1700 kc .1 mf Grid (top cap) of 1A7GT Iron cores all the way out Oscillator trimmer C3 -B
1700 kc 200 mmf Antenna lead Iron cores all the way out Antenna trimmer C3 -A
1400 kc 200 mmf Antenna lead Turn dial to 1400 kc
Adjust position of antenna coil (see coil view)*
*This adjustment and the previous adjustment are interlockine: therefore repeat the two adjustments alternately for best results.
VIEW OF COIL ASSEMBLY
The antenna coil assembly is movable left or right. When making the adjustment as required in the alignment pro- cedure, move the coil assembly very slowly, either by hand or by pivoting one end of a screwdriver' blade in the hole and engaging the blade in the gear teeth of the coil form.
Ref. No. Part No. Description
Cl 129114 C2 100112
C3 -A, -B 124165
C4, C6 C5 C7 C8
C9 C10, C12
C11 C13 C14 C15
10022 12912 1006 C -8D-11270
or 119117 129177 12940 10012 10026 10017 1007
CAPACITORS 300 mmf, 20%, mica .001 mf, 200 volts, 10% Dual trimmer, antenna and oscil-
lator. Range: 84-156 mmf ea. .05 mf, 200 volts, 25% 250 mmf, 20%, mica .25 mf, 200 volts, 25% .5 mf, 200 volts, -20%-10%
10 mf, 150 volts, electrolytic 45 mmf, 5%, ceramicon 100 mmf, 10%, mica .003 mf, 600 volts, 25% .02 mf, 400 volts, 25% .5 mf, 120 volts, -1-50%-10% .005 mf, 600 volts, 25%
RESISTORS* Rl C -9B1-74 10,000 ohms, 1 watt, 10%
R2, R5 C -9B1-34 3.3 megohms, 1 watt, 20% R3 C -9B1-81 39,000 ohms, 1 watt, 10% R4 C -9B1-27 220,000 ohms, % watt, 20% R6 130346 .56 ohm, 3 watt, 10%, wire -
wound R7, Sl 101210 Volume control (1 megohm) and
on -off switch R8 C -9B1-35 4.7 megohms, 1 watt, 20% R9 C -9B1-98 1 megohm, lh watt, 10% R10 C -9B1-101 1.8 megohms, 3 watt, 10% R.11 C -9B1-57 390 ohms, ',z watt, 10%
* The values of the resistors listed above are based on RMA standards. Due to conditions beyond our control some receivers have been shipped with resistors of pre - standardized values. This receiver will operate equally
114213 121210 107364
S2 12588B 115396 112825 112924 112824 B -2M-10383 A -53A-10989 120184 128501-36 128499-36 128499B-36 128638 131193
Tl -A, -B 13613
OUTPUT I.F
INPUT I.F TRIMMERS
GRID CAP
C3 -B 1R I
oMMEsi.
C3 -A TRIMMER
1A7 GT
'TAN' - - ANTENNA
BLACK' GROUND
A VG BATTERY PACK CABLE
ECONOMIZER S W ITON
21i
CHASSIS VIEW
Ref. No. Part No. Description
TRANSFORMERS AND COILS Tuning assembly complete, in-
cluding antenna and oscillator coils
T2 108202B Input I.F. coil, complete in can. Range of trimmers: 60-110 mmf (pri.), 40-70 mmf (sec.)
T3 108153C Output I.F. coil, complete in can. Range of trimmers: 40-70 mmf each
T4 10591C Output transformer
MISCELLANEOUS Speaker, 4 -inch, P.M. Tube socket Battery cable assembly Battery economizer switch Tube shield (for 1N5GT) Pointer, for dial Dial scale Crystal for dial scale Snap -in rivets for dial scale Cord for dial pointer drive (1 ft) Spring for drive cord Cabinet Knob, tuning Knob, volume Back for cabinet Snap -in rivets for mounting
back
well with resistors of either group. An illustration of the difference follows:
Pre -standardized value -200,000 ohms, 1/4 watt, 20% RMA value - 220.000 ohms, 1/2 watt, 20 %
©John F. Rider www.americanradiohistory.com
PAGE 17-16 WESTERN AUTO Model D2691 WESTERN AUTO SUPPLY CO.
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©John F. Rider
www.americanradiohistory.com
..drAilieddeftemeficAf WESTERN AUTO PAGE 17-1
WESTERN AUTO SUPPLY CO. Model D2691
04;
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©John F. Rider
www.americanradiohistory.com
PAGE 17-18 WESTERN AUTO Lode]. D2691 WESTERN AUTO SUPPLY CO.
ALIGNMENT PROCEDURE
The following equipment is necessary to properly align this chassis :
1. A signal generator which will provide an ac- 3. A non-metallic screwdriver. curately calibrated signal at the frequencies listed.
2. An output meter.
4. Dummy antenna : - .1 mfd. - 200 mmf. - 400 ohms
CONNECT TEST OSCILLATOR TO
DUMMY ANTENNA
INPUT SIGNAL FREQUENCY
BAND SET DIAL AT TRIMMERS PURPOSE ,
12SA7GT grid .1 mfd. 455 kc. Broadcast HF end CDEF Align IF 12SA7GT grid .1 mfd. 1620 kc. Broadcast HF end B Set limit of band Ant. terminal 400 ohms 18.3 mc. Short Wave HF end C-9 Set limit of band Ant. terminal 400 ohms . 18.0 mc. Short Wave 18 mc. C-2 Align antenna Ant. terminal 200 mmf. 1400 kc. Broadcast 1400 kc. C-3 Align antenna Ant. terminal 200 mmf. 600 kc. Broadcast 600 kc. C-6 Rock gang and
adjust to max.
NOTE: Recheck alignment of trimmers B and C-3 after adjusting C-6.
Dial Mechanism
Electrical and Mechanical Specifications
Tube Layout
Frequency Range 540-1600 kc., 6-18 mc: V.C. Impedance 3.5 ohms at 400 cycles
Intermediate Frequency 455 kc. Power Output (Undistorted) .75 watt
Power Supply____105-125 volts, 50-60 cycle AC or DC Power Output (Maximum) 1.5 watts
Loudspeaker Dynamic Tuning Drive Ratio 5-1
TUBE COMPLEMENT
1-12SA7GT Oscillator and Mixer tube 1-50L6GT Power Output tube
1-12SK7GT IF Amplifier tube 1-35Z5GT Rectifier tube
1-12SQ7GT Second Detector and First Audio tube
NOTE: The above glass tubes are interchangeable with their metal equivalent.
©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-19
WESTERN AUTO SUPPLY CO. Moue1 D2691
SOCKET VOLTAGES
TUBE POSITION I 2 3 4 5 6 7 8
12SA7GT Oscillator and Mixer 0 37.5 AC 99 99 -4.2 0 24.5 AC 0
12SK7GT IF Amplifier 0 24.5 AC 0 0 0 99 12.5 AC 99
12SQ7GT 2nd Det.-lst Audio 0 0 0 0 0 16 12.5 AC O
50L6GT Power Output 0 85 AC 91.5 99 0 0 37.5 AC 5.9
35Z5GT Rectifier 0 117 AC 112 AC 0 112 AC 0 85 AC 112
0 ® O
0.n 0 gC 0 ©
O
I Re
NOTE:
3 f110
All switch otherwise Volume Line
DC voltages (-B)
marked. control
Voltage
I
to socket
full 117
L
measured
on.
volts
2 Ci
contact
No AC.
with a 1000 indicated.
signal.
ZAD
ohm -per -volt meter from ON-OFF All voltages are positive DC unless
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SERVICE PARTS Symbol Part No. Description
C-7 BC31B503 Cap., Molded Paper, .05 mfd. C-13 BD210503 Cap., Paper, .05 mfd., 200 v. C-15 BD410103 Cap., Paper, .01 mfd., 400 v. C-14 BD410104 Cap., Paper, .1 mfd., 400 v. C-18, 19 BD410203 Cap., Paper, .02 mfd., 400 v. C-1, 12 BD610202 Cap., Paper, .002 mfd., 600 v. C-10 BM58D512 Cap., Mica, 5100 mmf. C-11 BM78A101 Cap., Mica, 100 mmf. C-17 BM78A221 Cap., Mica, 220 mmf. R-10 BR16C151 Resistor, 150 ohm, ' w. R-2 BR17B151 Resistor, 150 ohm, 1 w. R-3 BR17B156 Resistor, 15 meg., 1/2 w. R-1 BR17B223 Resistor, 22.000 ohm, 1/2 w. R-5 BR17B224 Resistor, 220,000 ohm, 1/2 w. R-6 BR17B335 Resistor, 3.3 meg., 1/2 w. R-8, 9 BR17B474 Resistor, 470,000 ohm, 1/2 w. R-7 BR17B685 Resistor, 6.8 meg., % w.
A-2163 Cable, Drive A-6158 Lamp, Pilot, No. 47, Mazda, 6.3 v.
Order parts not listed by specifying (1) Part Name and (2)
LIST Symbol Part No. Description
C-16 A-8948 Cap., Electrolytic, 40-20 mfd. R-4 B-9051-5 Control, Vol & Sw. 500,010 ohm T-1 B-51010-1 Transformer Assembly, 1st IF T-2 B-51011-1 Transformer Assembly, 2nd IF
C-51014 Speaker, 5 -inch Dynamic A-51160-1 Cord, Power, 6 ft. A-51163 Clip, Spring
C-6 B-51428-5 Capacitor, Padder B-51591 Spring, Dial Bracket
SW -1 B-51764-1 Switch, Band A-51787 Spring, Cable, Music Wire
L-1 B-51828 Coil Assembly, BC & SW Ant. C-2, 3, 9 A-51834 Capacitor, Trimmer, 3 -section L-2 B-51836 Coil Assembly, Osc. C-4 C-51837-1 Capacitor, Variable C-8 B-51839-2 Capacitor, 1 mmf. C-5 B-51839-4 Capacitor, 2.2 mmf.
A-51869 Antenna Reel Assembly
Model Number (include number following dash)
©John F. Rider
www.americanradiohistory.com
PAGE 17-20 WESTERN AUTO Models D2718, D2718A WtSTERN AUTO SUPPLY CO.
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www.americanradiohistory.com
11 ddie 1trifici // WESTERN AUTO PAGE 17-21
WESTERN AUTO SUPPLY CO. Models D2718, D2718Á
C 29
BAND -SWITCH SHOWN AT 1 ST POSITION. BROADCAST BAND
540-1600 KC.
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PRI.
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ALL POINTS \
MARKED X RETURNED TO
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ALL POINTS MARKED X RETURNED TO
THIS POINT.
RIG R3
/ /
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GANGED
\ AVC \
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BAND -SWITCH SHOWN AT 2ND POSITION CLOCKWISE
SHORT WAVE BAND 6-18 MC.
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@John F. Rider
www.americanradiohistory.com
PAGE 17-22 WESTERN AUTO Models D2718, D2718Á WESTERN AUTO SUPPLY CO.
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©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-23
WESTERN AUTO SUPPLY CO. Models D2718, D2718A
SHORT WAVE BAND 6 to 18 Megacycles
This band is calibrated in megacycles. The 16, 19, 25, 31 and 49 meter bands, in which the principal international short wave broadcasts will be heard, are located in this band.
These bands will be found on the dial as follows: 16 Meter Band 17.7-17.9 MC 19 Meter Band ....15.1-15.3 MC 25 Meter Band 11.7-11.9 MC 31 Meter Band 9.5- 9.7 MC 49 Meter Band 6- 6.2 MC
ON-OFF SWITCH AND VOLUME CONTROL
i TUNING KNOB
i BAND SWITCH
HT
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S[« Yw[rwiK rd 1«.1.115..10 MAI 1aaV 001114(5
014-2070
NOTICE: There is a Model Number label on
the chassis. This label identifies the radio as
to chassis, dial and issue letter. When ordering
parts or writing, give ALL information appear-
ing on this label.
MISCELLANEOUS
12A464 4" x 6" P.M. Speaker complets with Mounting Bracket
Cone and Voice Coil Assembly (Specify Part Number and Letter Stamped on Speaker)
3A303 Tube Socket -Octal (8 prong) Molded 2A206 Band Change Switch_. --------- 10A601 Knob, Tuning 10A602 Knob. Volume For Ivory Cabinet 10A603 Knob, Band 10A604 Knob. Tuning I0A605 Knob, Volume . For Brown Cabinet 10A606 Knob, Band (----- 13X546 Line Cord and Plug Assembly....___...._...__.
55X292 Cabinet, Ivory Plastie... ..... _ . .......... __..__...._... 55X296 Cabinet, Brown Plastic 28X292 Snap Button(
t Antenna to Cabinet... - 6" PK Type Z" Screws (Mtg
Antenna te Chassis) 6X53 Rubber Bumpers (Mtd. to Bottom of Cabinet)
TRANSFORMERS AND COILS T-1 9A1443 110" Range Antenna Coil Assembly.... T-2 26A451 "B" Band Loop Antenna Assembly
(For Ivory Cabinet)___..._._ _---
REPLACEMENT PARTS LIST
T-2
T-3 T-4 T-5 T-6 T-7
26A452 "B" Band Loop Antenna Assembly (For Brown Cabinet)
9A1444 "D" Range Oscillator Coil Assembly 9A1442 "8" Band Oscillator Coll Assembly 9A1793 1st 1-F Coll Assembly 9A1794 2nd 1-F Coil Assembly 51X118 Output Transformer
C-1 C-2, C-9 C-3A.C-3B C-4 C-5 C-6 C7 C8 C10 C-II.C-23 C -12,C-15,
C-22 C -13.C-14 C16.C-21 C -17.C-18 C-19 C-20 C-24 C -25.C-28 C-26 C -27A C -27B C -27C )
C-29 C-30 C -3I
CAPACITORS
867102 17A 152 14A 148 46X289 17A174 Part of C3 47 X463 47X466 17A234 806104
1366403 Part of T-5 47 X446 Part of T-6 47X476 866502 47X467 B66103 867253
45X342
067204 067104 17A 123
.001 mf 200 V Tubular._. 2-25 mmf Trimmer Strip Gang Condenser Assembly.... 00475 mf 180 V Tubulár....
2-25 mmf Trimmer..._ (Gang Condenser Assembly)
47 mmf Molded.... 68 mmf Molded.... 300-450 mmf Trimmer .1 mf 200 V Tubular
.04 mf 200 V Tubular.... (Ist I -F Coil Assembly). --- 47 mmf Molded.... (2nd I -F Coll Assembly).... 100 mmf Molded.... 005 mf 200 V Tubular.._
470 mmf Molded.... .01 mf 200 V Tubular.... .025 mf 200 V Tubular.... 50 mf 150 VI 50 mf 150 V } Dry Electrolytic 20 mf 25 V 1
.2 mf 400 V Tubular.... ,1 mf 400 V Tubular.... 1.5-12 mmf Trimmer....
RESISTORS OHMS
R-1 884393 39 K R-2 884472 4700 R -3.R-5 885473 47 K R-4 B84332 3300 R6 885104 100 K R7 885225 2.2 meg R-8 B85475 4.7 meg R-9 36X309 .5 meg
8-10 B84153 15 K RII,R-14 B85474 470 K R-12 884333 33 K R -I3 B84823 82 K R-15 B84181 180 R.16 B85224 220 K R-18 884270 27 R-19 C85152 1500
WATTS 0.5 Carbon ....... 0.5 Carbon _..... 0.5 Carbon 0.5 Carbon .
0.5 Carbon 0.5 Carbon 0.5 Carbon Volume Control and
Switch ......... 0.5 Carbon 0.5 Carbon 0.5 Carbon 0.5 Carbon .
0.5 Carbon 0.5 Carbon 0.5 Carbon 1.0 Carbon
DIAL AND DRIVE ASSEMBLY 20X329 Cond. Cushion'Stud 1 Mtg. Gang Condenser 6X21 Rubber Grommet 1
26A450 Dial Bracket Assembly......._ ......................... 25A1044 Diffuser and Clamp Assembly 58X671 Dial (for Ivory Cabinet) 30X532 Dial Clamps .
15X236 Pointer 25X580 Drive Shaft Bracket 26X465 Driva Shaft 19X192 "C" Washer (For Drive Shaft) 24X564 Drive Shaft Spool 10X51 Drive Cord Assembly 28X113 Drive Cord Tension Serino 7A185 Pilot Light Socket Assembly
N,. 47 Pilot Light Bulb
©John F. Rider
www.americanradiohistory.com
PAGE 17-24 WESTERN AUTO Model 1)2145 WESTERN AUTO SUPPLY CO.
'3141400'I l£-9
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www.americanradiohistory.com
\\ ticheotaticsll WESTERN AUTO PAGE 17-25
WESTERN AUTO SUPPLY CO. Model D2745
BAND -SWITCH SHOWN AT 15T POSITION BROADCAST BAND
540-1600 KC.
5
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SHORT WAVE BAND \ T Ic11 9- 1 5.5 MC.
8
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©John F. Rider
www.americanradiohistory.com
PAGE 17-26 WESTERN AUTO Model D2745 WESTERN AUTO SUPPLY CO.
ALIGNMENT PROCEDURE Volume Control -Maximum All Adjustments. Connect Radio Chassis to Ground Post of Signal
Generator with a Short Heavy Lead. Allow Chassis and Signal Generator to "Heat
Up" for I minutes.
The following equipment is required for aligning: An All Wove Signal Generator which will provide
an accurately calibrated signal at the test fre- quencies as listed.
Output Indicating Meter -Non -Metallic Screwdriver. Dummy Antennas -.1 mf., 100 mmt., and 400 ohms.
SIGNAL GENERATOR BAND FREQUENCY CONNECTION DUMMY SWITCH CONDENSER ADJUST TRIMMERS TO
SETTING AT RADIO ANTENNA SETTING SETTING MAXIMUM
I.F. 455 KC 68A7 Pin 8 .1 mf. B Range Turn Rotor to Full Open RANGE
6 1620 KC Antenna Lead 100 mmf. B Range Turn Rotor to Full Open Oscillator Range B (C9) Tune Rotor to Max. Output
1400 KC Antenna Lead 100 mmf. B Range Set Pointer to 1400 KC Ant. Range B (C3) (See Note A)
600 KC Antenna Lead 100 mmf. B Range Tune Rotor to Max. Output Oscillator (CB) Rock Rotor -See Note B
Repeat above steps at 1620 and 600 KC until readjusting the oscillator Range B Trimmer (C9) causes no further improvement of output.
RANGE D 15,600 KC Antenna Lead 400 Ohm D Range Turn Rotor to Full Open Oscillator Range D (C10
14,000 KC Antenna Lead 400 Ohm D Range Tune Rotor to Max. Output Ant. Range D (C2) Rock Rotor -See Note B
LOOP RANGE
I
Reassemble chassis in cabinet.
1400 KC Antenna Lead 100 mmf. B Range Tune Rotor to Max. Output Ant. Range B (C3)
MISCELLANEOUS 12A442 6" P.M. Speaker Complete with Output Transformer
Cone and Voice Coil Assembly (Specify part number ane letters stamped on speaker)
Output Transformer (Specify part number and letters stamped on speaker)
3A303 Tube socket -octal (8 prong) moulded 3A304 Phono motor socket 3A305 Phono socket -single pin tip 10A578 Knob (Tuning) 10A579 Knob (Off -On, Volume) 10A581 Knob (Tone, Radio -Phono) 10A580 Knob (SW -BC) 2A359 Band Change Switch 13X328 Line cord and plug assembly
TRANSFORMERS AND COILS T-1 9A1812 "D" Range Antenna Coil Assembly T-2 9A1814 1st I.F. Coll Assembly T-3 9A1815 2nd I.F. Coil Assembly T-4 26A475 "B" Range Loop Antenna T-5 9A1813 "B" Range and "D" Range Oscillator Coil Assembly T-6 53X282 117 Volt 60 Cycle Standard Power Transformer T-7 Output Transformer (See Miscellaneous)
CAPACITORS C-2 17A164 5-50 mmf Trimmer C-3 17A251 1.5-12 mmf Trimmer C-4 47X473 47 mmf Silvered mica C-5 47X474 360 mmf Silvered mica
Gang Capacitor with drive psilley .0005 mf 200 V Tubular 350-430 mmf Trimmer 2.5-35 mmf Dual Trimmer
Silvered mica 400 V Tubular
Moulded Silvered mica
C-24 C-25 C-26 C-27 C-28
C-29 C -30A C -30B C -30C C-31 C-32 C-33 C-35
C -6A, C-6B14A178 C-7 866501 C-8 17A155 C-9, C-10 17A109 C-11 47X472 40 mmf C-12, C-18 D66403 .04 mf C-13 47X466 68 mmf C-14 47X481 286 mmf C-15, C-16 Part of T-2 (1st I.F.
C-19, C-23 47X463 47 mmf C-20, C-21 Port of T-3 (2nd I.F. C -22A & B
.04 mf
.005 mf
.10 mf .025 mf .004 mf .01 mf 40 mf 40 mf 20 mf 004 mf 470 mmf .05 mf .2 mf
Coil Assem.) Moulded
Coil Assem.) 47X112 50-50mmf Dual Mica 064403 400 V Tubular D66502 .400 V Tubular D67104 400 V rubular D64253 400 V Tubular D66402 400 V Tubular D66103 400 V Tubular
450 V 45X346 450 V 3 Section Electrolytic
25 V F66402 600 V Tubular 47X467 Moulded 866503 200 V Tubular D67204 400 V Tubular
Grid of 2nd I.F. (C20) & (C21) 1st I.F. (C15) & (C16)
Sensitivity (For 0.5 Watt Output, with External Antenna)
B Range 9 Microvolts Average D Range 20 Microvolts Average
C-10 C9 -D-RANGE 05C. "B"RANGE OSC.
C 2L
D"RANGE ANT.
8 600KC
PADDER
2NDI.F1 C -20&C 211
ST IF r C15 & C -I6
-C-3 LOOP ANT, TRIMMER c`+ NOTE A --Set pointer at the 1400 KC mark
on the dial scale. Attach pointer to drive cord.
NOTE B -Turn Rotor back and forth and, adjust the trimmer until the peak of greatest intensity is obtoined.
RESISTORS 885225 R-1, R-7 2.2 megohms 0.5 W Carbon C84393 R-2, R-4 39 K ohms 1.0 W Carbon 884393 R-3 39 K ohms 0.5 W Carbon B84222 R-5 2200 ohms 0.5 W Carbon 885105 R-6 1 megohm 0.5 W Carbon 885473 R-8 47 K ohms 0.5 W Carbon B84153 R-9 15 K ohms 0.5 W Carbon 36X358 R-10 .5 megohm Volume control and line switch 885106 R-11 10 megohms 0.5 W Carbon 885474 R-12, R-16 470 K ohms 0.5 W Carbon B84333 R-13 33 K ohms 0.5 W Carbon B84823 R-14 82 K ohms 0.5 W Carbon 40X276 R-15 3.0 megohms Tone control&Radio- Phono switch C84271 R-17 270 ohms 1.0 W Carbon 43X213 R-18 2.0 ohms 0.5 W Wire wound D84182 R-19 1800 ohms 2.0 W Carbon
DIAL AND DRIVE ASSEMBLY 26A400 Dial bracket assembly complete with dial glass,
background, diffusers, etc
7A202 Pilot light socket assembly
- No. 47 Pilot light 28X113 Drive cord tension spring 10X58 Drive cord assembly 15X150 Pointer
26X485 Drive Shaft 19X192 "C" Washer (for drive shaft)
6X21 Rubber Grommet 20X329 Cond. Cushion Stud } Mtg Gang Capacitor
Power Output
Frequency Ranges B Range 540-1600 Kilocycles D Range 9-15.5 Megacycles
Intermediate Frequency 455 KC Selectivity 40 KC Broad at 1000
Times Signal Speaker 6" PM Dynamic
NOTICE: There is a Model Number label on the chassis. This label identifies the radio as to chassis, dial and issue letter. When ordering parts or writing, give ALL information appearing on this label.
4 Watts Maximum 2.3 Watts, 10%
Harmonics Power Consumption (at 117 Volts AC) .40 Watts (normal)
60 Watts (phono operating)
©John Fe Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-27
WESTERN AUTO SUPPLY CO. Model D3720
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www.americanradiohistory.com
?AGE 17-28 WESTERN AUTO Model D3720 WESTERN AUTO SUPPLY CO.
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www.americanradiohistory.com
WESTERN AUTO PAGE 17-29
WESTERN AUTO SUPPLY CO. Model D3720
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©John F. Rider www.americanradiohistory.com
PAGE 17-30 WESTERN AUTO Model D3721 WESTERN AUTO SUPPLY CO.
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©John F. Rider
www.americanradiohistory.com
WESTERN AUTO PAGE 17-31
WESTERN AUTO SUPPLY CO. Model D3721
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www.americanradiohistory.com
PAGE 17-32 WESTERN AUTO Model D3721 WESTERN AUTO SUPPLY CO.
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©John F. Rider
www.americanradiohistory.com
WESTINGHOUSE PAGE 17-1
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©John F. Rider For alignent and additional material see Model H-104, pages 15-1, 15-3, 15-4 of hider's Volume XV.
www.americanradiohistory.com
PAGE 17-2 WESTINGHOUSE scliencticd
MODELS H -104B, H-105B,WESTINGHOUSE ELECTRIC CORP. H -107B, H -108B, H -110D, H -111B, H -137B, H -138B Chassis V-2102-3
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©John F. Rider
www.americanradiohistory.com
WESTINGHOUSE PAGE 17-3
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WESTINGHOUSE ELECTRIC CORP.MODHhS H -104B, H -105B, H -107B, H -108B, H -110B, fi -111B, H -137B, H -138B Chassis V-2102-3
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©John F. Rider For additional parts list see Model H-104, page 15-4 of Rider's Volume XV.
www.americanradiohistory.com
PAGE 17-4 WESTINGHOUSE MODELS H -104B, H -105B, ESTINOHOUSE ELECTRIC CORP. H -107B, :i -108B, H -110B, H -111B, H -137B, H -138B Chassis V-2102-3, V-2102-5
TERM. BOARD
R24
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2 2 A DUMMY " . LUB
P.B. COILS
R26 R29
TERM. BOARDS
LIS C5'LI' RS
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PHONO. JACK
BOTTOM VIEW OF V-2102-3 CHASSIS
P B. COILS
4 3 2
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I REJ. TRAP TRIMMER
R4 053 R6 R31
TERM. BOARDS
TERM. BOARD W s4 -7-
L5- T ON TOP LUB
LB -F
POWER TRANS.
C23
L4 -F
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PHONO. MOTOR RECEPTACLE
L4BL3-S BRO.TO BRKT.
TI POWER TRANS.
HOHO. JACK PHONO. MOTOR RECEPTACLE
BOTTOM VIEW OF V-2102-5 CHASSIS
©John F. Rider
www.americanradiohistory.com
WESTINGHOUSE PAGE 17- WESTINGHOUSE ELECTRIC CORP. L OD: LS H -104B, H -105B,
H -107B, H -108B, H -110B H -111B, H -137B, H -138B Chassis V-2102-5
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®John F. Rider For aliment and additional material see Model H-104, pp. 15-1, 15-3, 15-4 of Rider's Volume XV.
www.americanradiohistory.com
dCil2lllCHtiCd rl ïE 17-6 WESTINGHQUS
ADELS H -104B, H-105B,WESTINGHOUSE ELECTRIC CORP. FI -107B, H -108B, H -110B, H -111B, H -137B, H -138B
Chassis V-2102-5
GND.
REAR SW4
SW ANT. COIL X 7
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RF.AMP .1(1-1
Ì c4 Ạ470MMF 68
FRONT SW4
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BAND -SWITCH SHOWN AT 2ND POSITION CLOCKWISE .
BROADCAST BAND (AUTOMATIC) PUSHBUTTON 1 DEPRESSED
RTER
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C53 220MMF
ISII.F TRANS.
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C55 T 200M MF
I a L 26 C54 , OSC CATHODE .001 COIL
NOTE :
1sT POSITION (PHONO) NOT SHOWN.
©John F. Rider
www.americanradiohistory.com
ll schema/jar, WESTINGHOUSE PAGE 17-7
CND.
SW.
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4
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WESTINGHOUSE ELECTRIC CORP.140DELS H -104B, H -105B, H -107B, H -108B, H -110B, H -111B, H -137B, H -138B Chassis V-2102-5
CI 33MMF
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BROADCAST BAND (MANUAL)
R4 IM
©John F. Rider
www.americanradiohistory.com
PAGE 17-8 WESTINGHOUSE dcl:e.Katicá.
MODELS H -104B, H-105B,WESTINGHOUSE ELECTRIC CORP. H -107B, H -108B, H -110B, E -111B, H -137B, H -138B Chassis V-2102-5
GM D.
B.C.
L3 ANT. COIL
CIO S.W. ANT. COIL
o. NI J i
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FRONT SW4
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CONVERTER
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C19 C20
C22
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COIL
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B i-(2239 AVC
©John F. Rider
www.americanradiohistory.com
WESTINGHOUSE PAGE 17-9 WESTINGHOUSE ELECTRIC CORP. MODEL H-157
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©John F. Rider
www.americanradiohistory.com
MODEL H-157 WESTINGHOUSE ELECTRIC CORP.
1
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WESTINGHOUSE 636 SPKR.SOCKET7 PILOT LAMP ó
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CORO POWER AC.
CHASSIS LAYOUT
ALIGNMENT Before beginning alignment, make certain that the dial pointer is correctly Connect an output meter across the speaker voice coil.
While making the following adjustments, keep the volume control set signal generator output attenuated to avoid AVC action.
for
positioned.
maximum output and the
Signal Radio Step Connect Signal Generator Dial Adjust
Generator to- Frequency Setting
1 6SF7 control grid through 455 kc 1600 kc Primary and secondary trimmers of 0.1 mfd capacitor 2nd I -F trans. for max. output
2 6SA7 control grid through 455 kc 1600 kc Primary and secondary trimmers of 0.1 mfd capacitor 1st I -F trans. for max. output
3 Antenna terminal through 455 kc 1600 kc "Peak" all I -F trimmers for 200 mmf capacitor max. output
4 Antenna terminal through 1615 kc gang at Oscillator trimmer for 200 mmf capacitor minimum max. output
5 Radiated signal (no 1400 kc 1400 kc Antenna trimmer for actual connection) max. output
©John F. Rider
www.americanradiohistory.com
WESTINGHOUSE PAGE 17-11 WESTINGHOUSE ELECTRIC CORP.
TENSION SPRING -
POINTER
DRIVE MECHANISM
PARTS LIST
2- TURNS
MODEL H-157
Part No.
V-5019 V-5268 V-5021
Description
Asbestos Sheet Background, dial Baffle and Grille Cloth Assy
Part No.
V-5023 V-5033 V-4986
Description
Nameplate, Volume Plate, front glass Pointer, dial
V-4997 Bracket, dial background .__. V -3166S Pulley, 7/16" dia. V-4991 Bracket, var. capacitor mtg. V-4987 Rail, pointer (incl. pulley V-5352 Bracket, volume control studs) V-1139-1 Cabinet, mahogany V-4994 Resistor, ballast, 75 ohms V-3304 Capacitor, electrolytic (R3)
30 mfd 150 v. (C1) RC20AE220M Resistor, 22 ohms / w. (R4) 50 mfd 150 v. (C2) RC30AE910J Resistor, 91 ohms 1 w. (R5)
V-4993 Capacitor, var. 2 -gang (C3, C4, C5)
RC40AE152M RC10AE332M
Resistor, 1500 ohms 2 w. (R6). Resistor, 3300 ohms 1/4 w. (R7)
RCM20A680M Capacitor, 68 mmf mica (C6) RC 10AE223M Resistor, 22K 1/4 w. (R8, R9) V-4992 Capacitor, trimmer (C7) RC 10AE823K Resistor, 82K 1/4 w. (R10) .... RCM20A301M Capacitor, 300 mmf mica RC20AE184K Resistor, 180K 1 w. (R11)..
(C8) RC20AE224K Resistor, 220K 1h w. (R12).. RCP10W6502A Capacitor, .005 mfd 400 v. RC1OAE224M Resistor, 220K 1/4 w. (R13)..
(C9) RC1OAE274K Resistor, 270K 1/4 w. (R14)_. RCP10W4103A Capacitor, .01 mfd 400 v. RC 10AE334K Resistor, 330K 1/4 w. (R15)..
(C10, C11, C12, C13, C14, C15)
RC10AE225M RC10AE106M
Resistor, 2.2M 1/4 w. (R16)__.. Resistor, 10M 1/4 w. (R17)...
RCP10W4503A Capacitor, .05 mfd 400 v. V-4988 Shaft, tuning (C16, C17, C18, C19) V -3344S-1 Sleeve, spacer, var.
RCP10W4204K Capacitor, .2 mfd 400 v. (C20) Capacitor mtg. RCP10W4104A Capacitor, .1 mfd 400 v. V -3246S Socket, octal
(C21, C22) V -3163S Socket, octal (pin No. 1
V-4763 Clamp, dial GND) V-3382 Coil, oscillator (L1) V-4989 Socket, pilot lamp V-4982 Control, volume (R1), tone V -3299S Socket, speaker
(R2) and switch (SW1) V-5034 Speaker, 5"x 7" P. M. V-4349-1 Cord, A -C power V -3248S Spring, dial drive V -4304S-10 Cord, dial drive (incl. clip).. V-3909 Strip, plastic, loop mtg. V-5024 Cover, back V -3228S-1 Terminal Board, 2 lugs V-4983 Dial Scale V-4776 Terminal Board, 3 lugs V-4072-1 Fastener, back cover clip .._. V-5041 Terminal Board, 4 lugs V-4893 Foot, rubber V -3375S Terminal Board, 5 lugs V-3J45S-5 V-4362-3
Grommet, var. capacitor mtg. Knob, ON-OFF and tone ....
V-3328 Transformer, 1st I -F (L3, L4, C23, C24)
V-5039-1 V-5028-1
Knob, tuning Knob, volume
V-3329 Transformer, 2nd I -F (L5, L6, C25, C26, C27, C28, R18)
No. 6S6 V-5031
Lamp, pilot Loop, antenna (L2) V-3297 Transformer, output (T1) ..
V-5043 Narfieplate, Westinghouse V -3752S Washer, felt (for knobs) V-5022 Nameplate, Stations V -3267S-4 Washer, flat (chassis mtg.)..
©John F. Rider
www.americanradiohistory.com
VAGE 17-12 WESTINGHOUSE
©Jahn F. Rider www.americanradiohistory.com
WESTINGHOUSE ELECTRIC CORP. MODEL H-165
1 R4
SWI Ii n + C 3 _ RI -D ,/ U O
RI8
019 quo e ' 5
, 016 R9
6
C13 IRS L3
? ,TERM. ' 80ARO81 C14 Re R9 -__` -+ SEL. RIO --.
RECT. R12 RI3 i -"16R2 3 018 C20
023
gimüd R19
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R21 `=17
028 .7 14 LS
1
0CI 2 RI -o/
R 3V4 1S5 1U4 ' ° '' IU4 I
024 E I C29 C26- U 0 O C21 1
BOTTOM VIEW OF CHASSIS ¡
n n ~ 1
ANT. TRIY. TRIP. / I
Cs ce
IllIg=alrBl ti \ 1
RI OSC. TRIM
I DIOI Ll :II tá L CII T 1
OUTPUT CIS
Cq lX1 l / ® 1.5.1 I F. SP TRiNS.
P C7
(.--C.1OSD PAD. PCORED
CS I }
TRNHHNADNS.
e ® ® I
II P I
v SIDE VIEW CHASSIS LAYOUT
%. 2 2 TURNS ',
-11W/MR -___ -___ _TENSION SPRING
r7 POINTER
DIAL DRIVE
ALIGNMENT Before beginning alignment, make certain that the dial pointer is properly orientated with respect to
the dial scale. Connect an output meter across the speaker voice coil. While making the following adjustments, keep the volume control set for maximum output and the sig-
nal generator output attenuated to avoid A. V. C. action.
Signal Radio Step Connect Signal Generator Dial Adjust for Generator to- Frequency Setting Maximum Output
1 1U4, I -F Amp., control grid 455 kc 550 kc Primary and secondary through a 0.1 mfd capacitor trimmers of 2nd I -F trans. 2 1R5, Converter, control grid 455 kc 550 kc Primary and secondary through a 0.1 mfd capacitor trimmers of 1st I -F trans. 3 Stator of R -F section (C7) of 455 kc 550 kc "Peak" all I -F trimmers tuning capacitor through a 0.1
mfd capacitor
4 Same as above 600 kc 600 kc Oscillator gadder (C4) 5 Same as above 1600 kc 1600 kc Oscillator trimmer (C10) 6 Repeat steps 4 and 5
7 Radiated signal (no actual 1400 ke 1400 kc R -F trimmer (C8) and ant. connection) trimmer (C6)
©John F. Rider
www.americanradiohistory.com
PAGE 17-14 WESTINGHOUSE MOD EI, H-16 5 WESTINGHOUSE ELECTRIC CORP.
PARTS LIST
Part No.
V-4865 V-4869
V-4169-1 V-3920 V-4790-1 V-4790-2 V-4818 V-4789 V-4835 V-4893 V-4836-2
Description
Background, pointer Baffle and Grille Cloth
Assembly Base, shield, miniature tube Battery Pack, "A -B" Bracket Assy., R.H. (control) Bracket Assy., L.H. (control) Bracket, chassis mounting Bracket, rail pointer Bracket, shield mounting Bumper, door Button, hole plug
Part No.
V-3891
V -4800S-1 V -4876S-1 V-5045 V-3873 V-4801 V -3166S V-4115 V-4872
V-4807
Description
Nut, speed, back cover, 3/16"
Nut, speed, grille mounting Nut, speed, speaker mounting Paper, fish, switch insulating Plug, battery cable Pointer Pulley, 7/16 dia. Rectifier, selenium Resistor, ballast, 2200 ohms
(R3) Resistor, 68 ohms fusible
V-4242 Button, back cover (R4) V-1134 Cabinet RC1OAE391K Resistor, 390 ohms 1/4 w. V-3874 Cable, battery (R5, R6) V-4791 Capacitor, dry electrolytic,
dual 50 mfd 150 v. (C1, C2) RC20AE821K Resistor, 820 ohms 1, w.
(R7) V-3866 Capacitor, electrolytic cart-
ridge; 100 mfd 25 v. (C3) RC20AE682K Resistor, 6800 ohms 1/2 w.
(R8) V-4792 Capacitor, oscillator padder RC20AE471M Resistor, 470 ohms 1/2 w.
(C4) (R9) V-4793 Capacitor, variable 3 gang RC30AE102M Resistor, 1000 ohms 1 w.
(C5, C6, C7, C8, C9, C10, C11) RC1OAE474M
(R10) Resistor, 470,000 ohms 1/4
RCM20A101M Capacitor, 100 mmfd mica w. (R11, R12) (C12) RC10AE473M Resistor, 47,000 ohms 1/4 w.
RCM20A101K Capacitor, 100 mmfd mica (R13) (C13, C14) RC10AE225M Resistor, 2.2 megohms 1/4 w.
RCM20A301M Capacitor, 300 mmfd mica (R14) (C15, C16) RC10AE104K Resistor, 100,000 ohms 1/4 w.
RCP10W6102A Capacitor, .001 mfd 600 v. (R15) (C17) RC10AE224M Resistor, 220,000 ohms 1/4 w.
RCP10W6502A Capacitor, .005 mfd 600 v. (R16) (C18, C19) RC20AE105K Resistor, 1 megohm 1/2 w.
RCP10W4103A Capacitor, .01 mfd 400 v. (R17) (C20) RC1OAE335M Resistor, 3.3 megohms 1/4 w.
RCP10W4503A Capacitor, .05 mfd 400 v. (R18, R19) (C21, C22, C23, C24, C25, C26)
RC20AE475M Resistor, 4.7 megohms 1/2 w. (R20, R21)
RCP 10W 4104A Capacitor, 0.1 mfd 400 v. V-4802-4 Screw, speaker mounting (C27, C28, C29) V-4805 Shaft, tuning
RCM20A241K Capacitor, 240 mmfd mica V-4169-2 Shield, miniature tube (C30) V-4806 Shield, mounting plate
V-4849 Catch, door, front cover (under chassis) V -4202S Clamp, power cord V-5521 Shield, selenium rectifier _... V-4874 Clamp, spring (electrolytic
capacitor mounting) V-3344-1 Sleeve, spacer, grille mount-
ing and variable capacitor V-4794 Coil, antenna loading (Ll) mounting V-4795 Coil, oscillator (L2, L3) V -4292S-1 Socket, miniature tube V-4813 Coil, R -F (L4, L5) V-4809" Speaker, 4x6" P.M. V-4796 Control, tone, 1.0 megohms V-4057 Spring, dial drive
(R1) V -3258S Spring, knob V-4797 Control, volume, 1.0 megohms V-3909 Strip, plastic, loop mounting
(R2) V-3892-2 Stud, back cover V -4304S-6 Cord, dial drive V-4829 Stud, handle mounting V-4349-1 Cord, power A -C V-4803 Switch, battery -off-line V-4825 Cover Assembly, back (SW1, SW2) V-4826 Cover Assembly, front, with V-3351 Terminal Board, 2 lugs
knob and catch V -3228S-2 Terminal Board, 2 lugs, 1
V-3371 Foot, rubber lug grounded V-4798 Grille, front V-3487 Terminal Board, 11 lugs V-3766 Grommet, fibre V-4810 Terminal Strip, 2 lugs, R.H. V-3345-5 Grommet, rubber control bracket assembly ..
V-4828 Handle V-4811 Transformer, 1st I -F (L7, V-4833 Hinge, back L8, C31, C32) V-3437 Insulator, electrolytic capac-
itor V-4812 Transformer, 2nd I -F (L9,
L10, L11, C33, C34) V-4840 V-4848 V-4839 V-4856
Knob, battery -off-line Knob, door catch, front Knob, volume, tuning, tone Latch, back cover
V-37525 V-4853
V -3267S-4
Washer, felt, knob mounting Washer, felt, upper front
cover Washer, flat, back cover
latch mtg. V-4831 Loop, antenna (L6) V-4896 Washer, flat, foot mounting.. V-4846 Molding, front cover V-3867 Washer, phenolic, ballast V-3894 Nameplate mounting
©John F. Rider
www.americanradiohistory.com
WESTINGHOUSE PAGE 17-15
WESTINGHOUSE ELECTRIC CORP. MODEL APR -478
.005
BOTTOM VICW OF TUBE SOCKETS
too
35050T
)r
IYSA7
125A7 1i -e' DE T. -05C.
YELLOW
Reel Ili [gift
455KC 455KC UIF rMIF
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50L6GT OUTPUT
37
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+ +
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Alignment Procedure Power Supply.-Although this model employs an ac -dc chassis, it is
not suitable for use on d.c., as this would damage the motor. Output Meter Alignment.-Connect the meter across the voice coil, and turn the receiver volume control to maximum.
Test-Oscillator.-Connect the low side of the test -oscillator to the receiver chassis, through a .01 mfd. capacitor, and keep the output as low as possible.
Antenna.-The set is equipped with a built-in loop antenna. If an outdoor antenna is used, it should be connected to the blue antenna lead on the rear of the chassis.
Steps Connect the high side of test-osc. to-
Tune test- osc. to- Turn radio
dial to- Adjust the fol -
lowing for max. peak output-
1
12SK7 I -F grid In series with
0.1 mfd.
455 kc Quiet Point 1,500 kc end
of dial
C3, C4 2nd I -F
transformer
2
12SA7-1st. det. grid in series
with 0.1 mfd.
Cl, C2 1stI-F
transformer
3 Antenna Lead (blue) in series with 100 mmfd.
1,560 kc signal
frequency
C5 (osc.)
4 1,300 kc C6 (ant.)
5 Repeat steps 3 and 4.
,.,,j PHONO RADIO
LOUD,zR ru "OFF J1 MELLOW 1 MELLOW
SOFT,' FULL VOLUME PHONO-RADIO TUNING
CONTROL POWER-TONE CONTROL CONTROL
Controls
The phonograph motor is a self-starting, constant -speed in- duction type. It should be lubricated every six months by apply- ing a few drops of light machine oil to the top and bottom motor spindle bearings, to the turntable spindle and to the turntable drive wheel bearing.
CAUTION: Keep oil away from drive bushing on top of motor spindle and from rubber driving tire on turntable drive wheel.
RED
.025
.0085
II
PERMANENT BLUE MAGNET
DYNAMIC SPEAKER
ENONT V IR W RADIO -PROMO -TONE & POWER bW. SHOWN IN OFF POSITION
51 1911N7
RICK,*
3M-Mr 10.1
TURNTABLE
DRIVE WHEEL
MOTOR SPINDLE
MOTOR
NEEDLE PACKAGE HOLDER
TURNTABLE SPINDLE
PICKUP REST
NEEDLE SCREW
CUP FOR USED NEEDLES
Phonograph
Pre-setting Dial.-With gang condenser in full mesh, the pointer should be horizontal.
©John F. Rider
www.americanradiohistory.com
PAGE 17-16 WESTINGHOUSE MODEL m' -478 WESTINGHOUSE ELECTRIC CORP.
Electrical and Mechanical Specifications
Frequency Range 540-1,650 kc
Intermediate Frequency 455 kc
Tube Complement (I ) RCA- I 2SA7 1st Detector -Oscillator (2) RCA-I2SK7 1-F Amplifier (31 RCA- 12SQ7 2nd Detector, 1st A.F, and A.V.C. (4) RCA-50L6GT Power Output (5) RCA -3 5Z5GT Half -Wave Rectifier Dial Lamp (I) Mazda 51, 7.5 volts, 0.2 amp.
Power Output (125 volt, 60 cycle supply) Radio Phonograph Undistorted 0.9 watts ... 1.5 watts Maximum 1.2 watts ... 2.1 watts
Power Supply Ratings A -C Rating 105-125 volts, 60 cycles, 55 watts Loudspeaker (RL -8I -A4) Type 5 -inch Permanent Magnet Dynamic Voice -Coil Impedance 4 ohms at 400 cycles Phonograph Synchronous (self-starting) Records 10 -inch and 12 -inch, 78 r.p. in. Pickup Crystal, 100,000 ohms at 1,000 c, p.s. Average Output of Pickup I V, volts at 1,000 c.p.s.
across 1/4i meg. load Cabinet Dimensions (inches). Height 10%, Width 16%s, Depth 13% Weight (net) 18 Rounds Tuning Drive Ratio 9---1
REPLACEMENT PARTS
PART No.
DESCRIPTION
PICKUP AND ARM ASSEMBLIES
33591 Arm-Pickup arm only-less cartridge, base and cable
34481 Arm-Pickup pivot arm and shaft 34482 Base-Pickup mounting base 34758 Bushing-Rubber bushing and metal bushing for
pickup pivot arm shaft 33122 Crystal-Pickup crystal cartridge and needle screw. 34311 Ring-Retaining ring for pivot shaft 33529 Screw-Needle screw.
MOTOR ASSEMBLIES
36402 Arm-Idler arm and stud 20134 Ball-Steel ball 37215 Motor -105-125 volts, 50 cycle 36404 Motor -105-125 volts, 60 cycle motor 36403 Mounting-One set of motor mounting grommets,
spacers, and washers 36406 Plate-Idler arm guide plate 36401 Plate-Motor plate complete with bearing and ball 30340 Retainer-Motor fan retainer 30585 Spring-Idler arm tension spring 36399 Turntable-Turntable and bushing complete with
spindle 33726 Washer-"C" washer for idler wheel 36405 Washer-Flat washer for idler wheel 36274 Wheel-Idler wheel and bearing
SPEAKER ASSEMBLIES (RL -81-A-4)
32907 Cap-Dust cap 36295 Cone-Cone complete with voice roil
MISCELLANEOUS ASSEMBLIES 36438 Crystal-Dial scale crystal
4109 Cup-Used needle cup 36612 Decalcomania-Control panel decal 35447 Decalcomania-Trade mark decal 36809 Hinge-Cabinet lid hinge 36246 Holder-Needle book holder 34340 Knob-Radio-Phono-Power switch knob 36202 Knob-Tuning or volume control knob 11765 Lamp-Dial lamp, Mazda 61 36305 Mounting-One set of mounting hardware for motor 36303 Mounting-One set of mounting hardware for pickup
arm 30870 Plug -2 -prong male plug for motor 32610 Rest-Rubber pickup rest 14270 Spring-Retaining spring for knobs 36810 Support-Cabinet lid support
PART No. DESCRIPTION
CHASSIS ASSEMBLIES (RC -517-A)
35332 Can-Shield can for I -F transformer, Part No. 36432 35097 Can-Shield can for I -F transformer, Part No. 35086 12720 Capacitor -100 mmfd., moulded mica 12694 Capacitor -220 mmfd., moulded 12952 Capacitor -330 mmfd., moulded mica 34459 Capacitor-.0025 mfd., 1,400 volts-tubular 33584 Capacitor-.005 mfd., 1,200 volts-tubular
4937 Capacitor-.01 mid., 1.000 volts-tubular 11315 Capacitor-.015 mfd., 400 volts-tubular 30938 Capacitor-.025 mfd., 400 volts-tubular 32787 Capacitor-.05 mid., 400 volts-tubular
4839 Capacitor -0.1 mfd., 400 volts --tubular 34505 Capacitor -0.2 mfd., 300 volts-tubular 12484 Capacitor -0.25 rñfd., 350 volts-tubular 35673 Capacitor-Electrolytic comprising 1 section of 30
mfd., 150 volts, and 1 section of 50 mfd., 150 volts. 35571 Coil-Oscillator roil 36285 Condenser-Variable tuning condenser 36435 Control-Volume control 32634 Cord-Drive cord .
36439 Dial-Dial scale 36440 Indicator-Station selector indicator 36289 Loop-Antenna loop 36286 Plate-Dial plate and support-less dial 30868 Plug -2 -contact female plug for motor cable ' 30189 Resistor -120 ohms, '.= watt
3153 Resistor -1,500 ohms, 1 watt. 13998 Resistor -22,000 ohms, !,q watt 12412 Resistor -47,000 ohms, ',, watt 12264 Resistor -220,000 ohms, ',, watt 12285 Resistor --470,000 ohms, % watt 12679 Resistor -2.2 meg.. 'iá watt 13601 Resistor -10 meg., ' watt 36437 Shaft-Tuning shaft 36292 Socket-Dial lamp socket 31251 Socket-Tube socket '
31319 Socket-Tube socket-moulded for 12SA7 tube 30585 Spring-Drive cord spring 35098 Spring-Used to hold I -F transformers in shield cans 36436 Switch-Radio, phono., and power switch 35088 Transformer-First I -F transformer-less shield can 36432 Transformer --Second 1-F transformer-less shield
can 35666 Transformer-Output transformer. 33726 Wásher-"C" washer for tuning shaft
©John F. Rider
www.americanradiohistory.com
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MODELS 6A10. 6A20
nJ6,hn F., Rider RECORD CIANGER: Wilcox -Gay Model 6E45, RCD. CH. 17-7
www.americanradiohistory.com
PAGE 17-2 WILCOX-GAY MODELS B4 B, WILCOX-GAY CORP. 6B45óí, 6B45Rr
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www.americanradiohistory.com
ZENITH PAGE 17-1
©John F. Rider
www.americanradiohistory.com
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©John F. Rider
www.americanradiohistory.com
ZENITH RADIO CORP. ZENITH PAGE 17-3
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www.americanradiohistory.com
PAGE 17-4 ZENITH
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www.americanradiohistory.com
ZENITH RADIO CORP. ZENITH PAGE 17-5
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www.americanradiohistory.com
ZENITH PAGE 17-7
ZENITH RADIO CORP. MODEL 6MF780, Ford
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ZENITH RADIO CORP. SAGE 17-8 ZENITH
MODEL 6MF780 Ford
Receiver Installation INSTRUMENT PANEL
ANTENNA CABLE.
LINK "B"
VENTILATOR HANDLE
WING NUT "A"
SPEAKER
SPEAKER CABLE
HOOK BOLT "D"
WING NUT 'E'
BOLT, WASHER & NUT "C"
1-Install the antenna and antenna cable. Complete installation instructions are packed with each antenna kit.
2-Remove the radio opening cover plate from the in- strument panel.
3-Place the speaker over the studs on the rear of the instrument panel, with the cable to the left. Fasten se- curely with the four wing nuts No. 54-189, furnished in the installation kit.
4-Start the No. 12-24 wing nuts "E" on the hook bolts "D" (Fig. 2). Place the receiver in position. Slip the end of the hook bolts through the receiver brackets with the hooks turned toward the center. Hook the bolts in the holes provided on the instrument panel. Tighten the wing nuts sufficiently to hold the receiver in place while the supporting link "B" is connected between the rear hanger bracket of the receiver and the ventilator bracket of the car, with bolts, lock -washers and nuts ("C." Fig. 2.)
5-Tighten all nuts and bolts to hold the receiver firmly in place.
6-Connect "A" lead to circuit breaker. (Fig. 3.)
7-Connect the speaker cable and antenna lead to the receiver.
"A" LEAD
Fig. 2. Set Installed. Cut Away View
8-IMPORTANT: Turn the receiver on and allow it to operate for approximately fifteen minutes in order for each part to reach normal operating temperature. Tune in -a weak station near 1200 Kc. With a small screwdriver adjust the antenna trimmer (Fig. I.), for maximum volume.
CIRCUIT BREAKER
"A" LEAD TO SET
00000 00000 00000 OO 00000 O
00000 00000
Fig. 3
© John F. Rider www.americanradiohistory.com
PA E 1
ZENITII RADIO CORP. MODEL 6MF780 Ford
Setting The Adjust -O - Matic Tuning Pressing the station selector touch -bar six times will cause
the tuning mechanism to change through a cycle of six
positions. Five of these Adjust-O-Matic positions, at
which numbers appear in the station indicator window,
may be set for five favorite local stations while the sixth
position, at which the letter M appears in the station
indicator window, may be used for selecting stations
manually.
The five positions, at which numbers appear in the sta-
tion indicator window, may be adjusted in succession
to any desired dial settings. However, in order to sim-
plify the identification of the stations, it is advisable to
set the Adjust-O-Matic mechanism in sequence accord-
ing to frequencies of the stations, beginning with the
station broadcasting on the lowest frequency, and pro-
gressing to the station broadcasting on the highest fre-
quency.
Turn the receiver on and allow it to operate for at least
fifteen minutes in order for each part to reach normal
operating temperature before making the following Ad-
just-O-Matic settings:
Interference Important
Use the utmost care in the following operations to insure freedom from interference. Clean away paint and dirt to make good contacts between condensers and the car. Tighten all bolts and nuts securely.
1-Install a condens- er, Part No. 22-1148,
and a ground strap, Part No. S-9343, on the voltage regulator (Fig. 4.)
2-Mount a condens- er, Part No. 22-1326,
on the ignition coil
and connect the lead to the battery terminal (Fig. 5.)
3 --Cut the high tension wire, that runs from the ignition coil to the distributor, three quarters of an inch from the
point where it enters the soft rubber high tension wire
5-9343 GROUND STRAP
CONDENSER ON VOLT
Fig. 4
CONDENSER PART NO. 22-1149
REGULATOR
1-Press the station selector touch bar repeatedly until
No. 1 appears in the station indicator window.
2-Pull the manual tuning knob outward engaging the
Adjust-O-Matic mechanism with the dial. (Fig. 1.)
3-Select the station desired and tune it in by turning the tuning knob in the same manner as when tuning the
radio manually. Tune very carefully for clearest recep- tion.
CAUTION: Do not attempt to force the tuning knob in.
The knob will return to the "in" position when the sta-
tion selector touch bar is again depressed.
4-Press the station selector touch bar, pull the manual
tuning knob outward, and tune in the station desired for
No. 2 position. Use the same procedure for adjusting
positions Nos. 3, 4, and 5.
When the five positions have been adjusted to the five
desired stations, it is only necessary to press the station
selector touch bar to return to manual tuning or to any
one of the stations on the Adjust-O-Matic.
NOTE: When the letter M appears in the station indicator
window, the manual tuning knob must be pulled out-
ward and turned in order to select stations manually.
Elimination housing. Shorten the wire one inch. Remove the wire from the coil, and screw the suppressor into the wire
ends (Fig. 6). Replace the wire in the coil.
IGNITION COIL BATTERY TERMINAL
Fig. S
22-13 CONDENSER
is grounded to the car body, and does not touch the antenna roof tube nut. Be cer-
tain the antenna wing bolts are tight.
If ignition interfer-
ence is still present, check to make sure that the inside center windshield trim strip
Fig. 8
nut and all the instrument panel
©John F. Rider
www.americanradiohistory.com
WA 17-10 ZENITH ELS 614N088,
6MN788, Nash ZENITH RADIO CORP.
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ZENITIJ PAGE 17-11
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PAGE 17-12 ZENITH
©John F. Rider RECORD CHANGrR: Zenith Model S-11468, RCD. CH. 15-1
www.americanradiohistory.com
ZENITH PAGE 17-13
AJohn F. Rider tZh'CO_Rli CHANGER: Zenith Model S-11468, RCD. CH. 15-1
www.americanradiohistory.com
PAGE 17-14 ZENITH MODEL 61.(081Z
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www.americanradiohistory.com
ZENITH PAGE 17-15
ZENITH RADIO CORP. MODEL 6R087Z MODEL 6R087ZZ
PARTS LIST
DIAL ASSEMBLY MI SCELLANOUS 26.334 DIAL SCALE 2.121 CABINET BACK 46-522 CONTROL KNOB (DUMMY) 11.85 LINE CORD & PLUG 46-538 TUNING KNOB 11.87 LINE CORD & PLUG (Z MODELS) .
46.548 RADIO -PHONO REJECT KNOB 12.1138 WAVEMAGNET MTG. BRET 57-1071 ESCUTCHEON PLATE 15-23 PLUG CAP & INSULATOR (USED ON 59.161 DIAL POINTER S11456) 76-413 TUNING CONTROL SHAFT. . . . . . . 15-62 PLUG CAP & INSULATOR (USED ON 78.504 DIAL LIGHT SOCKET & WIRE. 511456) 80-365 TUNING SHAFT TENSION SPRING 19.123 PHONO UNIT MTG. CLIP 80.402 DIAL CORD TENSION SPRING. 27-81 MOUNTING FLANGE(SHAFT BEARING DISC) 100.36 DIAL LIGHT BULB 6.3 VOLTS 36.31 RECORD CHANGER PULL-OUT HANDLE. . .
159.50 PLUG BUTTON (DIAL SCALE MTG.) . 45.526 10" DYNAMIC SPEAKER 188-30 RETAINING RING (TUNING SHAFT) 206-526 OUTPUT TRANSFORMER 188-32 RETAINING RING (DIAL PULLEY). . 207-526 FIELD COtL(NOT REPLACEABLE) 188.34 RETAINER RING 208-526 CONE & VOICE COIL 188-54 KNOB CLAMPING RING 49.563 10" DYNAMIC SPEAKER(ALT.FOR 49-526) 192.94 DIAL CRYSTAL 206-563 OUTPUT TRANSFORMER S11161 DIAL PULLEY CORD & EYELET ASSEN 207.563 FIELD COIL(NOT REPLACEABLE) 511162 POINTER PULLEY CORD & EYELET ASSEN. 208.563 CONE & VOICE COIL 511168 CONDENSER PULLEY & BUSHING ASSEN. . 49-581 10"P.M.SPEAF.ER ¡,ALSO SEE S11292 DIAL PULLEY & BUSHING ASSEN . . 5-13257)). .C.22Z S11558 TONE & VOLUME CONTROL KNOB & RING OUTPUT TRANSFORMER (SEE 95-1011)....
ASSEN 208-581 CONE & VOICE COIL 49-585 10"P.M. SPEAKER .ETCzzz..
296-585 OUTPUT TRANSFORMER
CHOKES á COILS 52.377 208-585 CONE & VOICE COIL
SPEAKER CABLE (49.563) 95-909 1ST I.F. TRANSFORMER 58-88 WAVEMAGNET PLUG (3 PRONG) 95-910 2N0 I.F. TRANSFORMER 58-132 SIX PRONG PLUG (USED ON 511456) S11163 DETECTOR COIL ASSEN 58-152 SPEAKER PLUG. "4-4i4.Z 511164 OSCILLATOR COIL ASSEN 58-156 SPEAKER PLUG (49- 585) 42zz 513478 ANTENNA LOADING COIL ASSEM.6C22 Z7.. 70.83 #6 X 1/2 WASHER HD. WOOD SCREW 511896 ANTENNA LOADING COIL ASSEM..4422Z (CABINET BACK)
CONDENSERS 72-55 72.59
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22.138 .2 MFD. (C16) 200 V. SCREW (ESC. MTG )
22.171 .05 MFD. (C3) . . .... .600 V. 78.128 SPEAKER PLUG SOCKET 22-448 .004 MFD. (C14 & C20) . . . .600 V. 78.349 WAVEMAGNET' PLUG SOCKET 22.530 12 MMFD sC2-Z2;2 600 V. 78.373 OCTAL BASE TUBE SOKCET (5 CONTACT). 22.1444 .00) 6C 22z 200 V. 78-374 OCTAL BASE TUBE SOCKET (6 CONTACT). 22-829 .05 MFD. (C4) 200 V. 78-376 OCTAL BASE TUBE SOCKET (8 CONTACT). 22.830 .02 MFD. (C15) 600 V. 78.555 SIX PRONG SOCKET (USED ON S11456) .
22.854 .0005 MFD. (C13) 600 V. 78.611 OCTAL BASE TUBE SOCKET (Z MODEL). .
22.1041 .005 MFD. (C19) 400 V. (8 CONTACT) 22-1157 .03 MFD. (C9) 200 V. 78-623 PHONO SOCKET (6 PRONG) 22-1362 .004 MFD. (C12) 600 V. 78.732 SPEAKER PLUG SOCKET (Z MODEL) . .
22.1369 3 SECTION GANG COND. (C1) f . . . 89-463 PHONO MTG. SPRING
22-1372 DIVY ELECTROLYTIC 15 MFD.-450V.X . . 83.1218 INSULATING STRIP (GANG CUND.) . .
15 MFD.-350V.X . 83-1240 BLACK VINYLITE TRIM STRIP (RECORD (C17 & C18) 6C2222 CHANGER)
22-1382 DRY ELECTROLYTIC 40 X 40 MFD. 450V. X 40 MFD. - 25 V. 6C22Z
85.337 PHONO -RADIO SWITCH
(c17. 18 22).. 85.349 RECORD REJECT SWITCH 94.295 BUSHING -SWITCH MTG. (Z MODEL) . .
22.1386 .02 MFD. (C21) 600 V. 94-334 BUSHING -SWITCH MTG 22-1611 DRY ELECTROLYTIC 40 HFD-450V 95-911 POWER TRANSFORMER. 117V. 50.60. .
(C23.6C22z) ...... ...... ....... 95.1007 OUTPUT TRANSFORMER. 6C2Z?Z.
RESISTORS 95-1011 SPKR.OUTPUT TRANSFORMER (49-561)6.G22Z
63-156 10M PHM (RI) 1 WATT 95.1019 112.420
FILTER CHOKE. . . .Eic.Z27 . .
PHONO MTG. SCREW 63.296 220M OHM (R2( 1/4 WATT 112.489 HANDLE MTG. SCREW (36.31) 63.579 220 OHM (R3) 1/4 WATT
114.58 6-32 x 3/8 HEX ACCRN HD.M.S. SCREW . 63-589 10M OFM (R5) 1/4 WATT 114-128 CHASSIS MTG. SELF TAPPING SCREW . 63.591 2214 OHM (R10) 1/4 WATT 114.193 .
k8 x 3/16 HEX ACCRN HD.S.T. SCREW. 63-595 100M OHM (R15-6C22z) 1'4 WATT 114.202 .
88.32 x 1.1/8 SLOTTED HEX.WASHER HD 63-597 470M OHM (R13) 1/4 WATT S.T. SCREW (USED ON 12-1138) 63-600 2.2 MEGOHM (R7) 1/4 WATT 125-17 SWITCH MTG. GROMMETS 63-605 1M OHM (R6) 1/2 WATT 125-45 CONDENSER MTG. GROMMETS 63-655 220M OHM (R14.6C22Z2) . . .1/4 WATT 196.80 DUST GASKET 63-656 270M OHM (R15-6C22Zz) . . .1/4 WATT 202-381 PHONO INSTRUCTION SHEET 63.673 8.2 MEGOHM (R4) 1/4 WATT 202.388 INSTRUCTION BOOK 63-976 15 MEGOHM (R11) 1/4 WATT 237-1 CABLE CLAMP
63.1170 63-1222
1500 OHMaW.W. (R16-602211,....2 WATT 470 OHM w.w. (R14-6C22z)....l WATT
S13479 LOOP ANTENNA. 6C22 2Z 63.1227 220 OHM P.R. (R17-6C22z)....I WATT S13391 12" PM SPEAKER ASSEMBLY 4,4...222z. 63-1340 VOLUME CONTROL & SWITCH (R9) 513406 10" PM SPEAKER ASSEMBLY .62.2-2z. 63.1341 TONE CONTROL (1 MEGOHM) (R12) 511450 WAVEMAGNET ASSEN. (30A)..C.*2Z 63- 1545 400 OHM 10W 1R16 -6c22). 511456 INTER CONNECTING CABLE ASSEN
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(ALT. FOR 49-585) (z MODEL) 6.Ç Z..
©John F. Rider www.americanradiohistory.com
PAGE 17-16 ZENITH
©John F. Rider
www.americanradiohistory.com
ZENITH RADIO CORP. ZENITH PAGE 17-17
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©John F. Rider
www.americanradiohistory.com