MODERN

THE OFFICIAL PUBLICATION OF THE CALIFORNIA STATE ELECTRONICS ASSOCIATION

VOL. 2, NO. 11 MARCH, 1963

Inglewood Dealer Dave Garner Asks . . .

COLOR CRT REPLACEMENTS METAL OR GLASS?Page 15

AS OF OCTOBER 22, 1962 THE

LL(n+o_

(*it ended the day JFD introduced the Log -Periodic Ln TV antenna)Wave goodbye to all the Rube Goldberg contraptions withtheir "Chinese puzzle" combinations of collectors, direc-tors, reflectors.Now you can solve any reception problem with one com-pact, precisely -engineered antenna-the first TV antennabased on the geometrically -derived logarithmic -periodicscale developed by the Antenna Research Laboratories ofthe University of Illinois for the U.S. Air Force.Because it is inherently frequency -independent, the JFDLog -Periodic LPV delivers the same superb performanceon every VHF channel-performance comparable to thatof a single channel Yagi. And delivers it not only in black -

and -white, but in Color, and you get FM stereo too!

THE LOG -PERIODIC LPV ACTUALLY TUNES ITSELF TOEACH RECEIVED FREQUENCY-RESULTING IN: HIGHEST GAIN-as high as 14 db. in the LPV 17! SHARPEST DIRECTIVITY-on high bands as well as low! HIGHEST FRONT -TO -BACK RATIO-up to 35 db. LOWEST VSWR-as low as 1.2 to 1-with constant im-

pedance across the full bandwidth! FLAT RESPONSE ACROSS BOTH VHF BANDS-with

greater gain on the high band, where it's needed most(average increase of gain in high band over low band:31/4 db.)!

BROADEST BANDWIDTH-thanks to its unique fre-quency-independent characteristics!

FOR THE FIRST TIME ONE SCIENTIFICALLY FORMULATED ANTENNA CONFIGURATION SATISFIES ANY LOCATION DEMAND:

Harmonically resonant V -elements operate on the Log -Periodic Cellular Principle in the Fundamental and ThirdHarmonic Modes for unprecedented performance -in color-in black and white-in FM STEREO

developed by the Famous Antenna Research Laboratories

LPV-17: 15 Active Cells and DirectorSystem-up to 175 miles

LPV-8: 7 Active Cells and DirectorSystem-up to 100 miles

LPV-14: 13 Active Cells and DirectorSystem-up to 150 miles

LPV-6: 6 Active Cells-up to

LPV-11: 9 Active Cells and DirectorSystem-up to 125 miles

LPV-4: 4 Active Cells-up to75 miles 50 miles

Adapted to TV and FM Stereo by JFD

Fi ELIMINATES THE NEED FOR AREA -DESIGNED ANTENNAS100% PREASSEMBLED "FLIP-QUIK" ASSEMBLY

1/ MASSIVE TANK TURRET BRACKETS THAT DOUBLE -LOCK ELEMENTSV AAAt GOLD BOND ALODIZED TO KEEP THAT BRAND NEW LOOK

V EXTRA -RUGGED, DOUBLE -REINFORCED IN EVERY DETAILV LIGHTEST IN WEIGHT PER DB GAIN

,/ WIND -TUNNEL TESTED CONSTRUCTIONV LEAST SNOW AND ICE LOADING

}Attractive, Anti -corrosive Armor

DISTRIBUTED BY ANDREWS ELECTRONICS FRANK QUEMENTBurbank, Calif. San Jose

RADIO TELEVISION SUPPLY CO. WRESCO INC.Los Angeles Harbor City San Francisco San Carlos

LPV-11:

ved in Space Satellite Telemetry

HOW THE LOG -PERIODIC LPV MAKES ALL OTHER ANTENNAS OBSOLETEThe JFD LPV antenna is a direct descendant out of the logarithmicconical spiral antenna used on the Transit satellite. This basicdesign is FREQUENCY INDEPENDENT-it works like a conicalwaveguide to yield almost constant gain, matched impedance anda unidirectional polar pattern across an extremely wide bandof frequencies.

Dipole version of spiral antenna has elements whose length andspacing is determined by formula derived from conical spiralgeometry, so that antenna acts like a spiral with parts of coilsmissing. A logarithmic scaling multiplier ties the dipoles togetherinto active multi -element cells for each frequency. Crossed phasingharness inserts a 180 degree phase shift between dipoles thatcancels signals from rear, reinforces signals from front.

JFD's LPV antenna for TV and FM goes one step further-increasesgain and front -to -back ratio while maintaining frequency inde-pendence. Forward V-ing of elements shrinks rear radiation lobes,narrows forward beam for sharp directivity, helping to eliminateghosts and adjacent channel interference. Forward V alsovermitslow band dipoles to contribute to high band gain by operating onthe third harmonic mode.

For example: Operation of the JFD LPV11 on the low band: Thelarger dipole cells resonate to the low band TV frequencies attheir fundamental wavelength. Within each cell. one dipole absorbsthe greatest amount of signal for any particular channel, adjacentdipoles pull in 60% more and the next two dipoles add 30% moresignal. Many active dipoles working on each channel with constantimpedance guarantee high gain.----Indicates current distribution on fundamental mode.

On the high band: The third harmonic cell forms at the rear ofantenna for channel 7 and as the frequency increases towardchannel 13. the active region moves toward the apex of theantenna. It is this third harmonic operation which guarantees asmuch as 3% db. additional gain. Continuous and co -linear directorssharpen forward pattern and give peak performance across theentire VHF TV band.

indicates the current distribution for the third harmonicmode which will be received on all elements.indicates the active region for channel 10, i.e., the differ.ent efficiencies with which the elements of the LPV.11

act on channel 10.

The actual gain curves measured for the LPV-I I in the JFD AntennaResearch Laboratories confirm this fact: Within the band for whichit is designed (the principle will also be adapted for UHF andother usesi, the log -periodic LPV's impedance, polar patterns andfront -to -back ratio are virtually constant-with gain for eachchannel as high as that furnished by a comparable -sized single -channel Yagi.

FUNDAMENTAL MODE

CHA \NELS

THIRDHARMONIC MODE

2\\\\\\,.,.A

1/13/11/IllCHANNELS

Each antenna ii the LPV series consists of an array of resonant V -dipoles and crossed phasing bars, constituting a group of "cells." The size of each cell differs from the ore before it by aLogarithmic factor. For any particular frequency, the active portion of the antenna centers on the resonant dipole (equal to one-half wavelength at that frequency), with the adjacent elementsalso absorbing significant signal energy. The resonances of adjacent cells overlap, so that as the frequency increases or decreases, it is transferred smoothly from one cell to the next.

In effect, the signal is passed along as the frequency increases-the active area moving toward the apex or small end-until, as the fundamental harmonic reachesone end, the other endapproaches resonance in the third harmonic. Conventional wide -band antennas are like rows of compartments, one for each channel desired, with sharp cutoffs. The log-periodic antenna islike a continually moving belt that accepts smoothly any frequency that hops aboard.

U S Patents 2.958.081-2.985.879-3.011,168 Additional Patents Pending. Produced exclusively by JFD Electronics under license to University of Illinois Foundation

SEE THE JED LOG -PERIODIC LPV AT YOUR JFD DISTRIBUTOR NOW-AND BE THE FIRST ONE IN YOUR AREA TO INTRODUCE AND PROFIT FROM THIS NEWERA IN TV RECEPTION

JFDTHE BRAND THAT PUTS YOU IN COMMAND OF THE MARKET

JFD ELECTRONICS CORPORATION15th Avenue at 62nd Street, Brooklyn 19, N.Y.

JFD Electronics -Southern Inc.. Oxford, North CarolinaJFD International, 15 Moore Street, New York, N.Y.JFD Canada, Ltd., 51 McCormack Street, Toronto. Ontario. Canada

401-144 W. Hastings Street, Vancouver 3. B.C.

DUNLAP ELECTRONICSStockton Sacramento Marysville

Chico - Merced - ModestoPitts) ore Walnut Creek - Frecnn

RADIO PRODUCTS SALES CO.Los Angeles

WHOLESALE ELECTRONICS SUPPLY CO. WESTERN RADIO & TV SUPPLY, INC.Ventura Santa Barbara San Diego

PEEivion1=2.MODERN

STAFF:

DONALD J. MARTINPublisher

CSEA Press Secretory

WM. I. "BILL" QUINNEditor

SIMON NATHANSONManaging Editor

FRANK BURNSBusiness Manager

MORRI OVSEYArt & Cover Director

GRAYCE KENNEDYClassified Advertising Director

CSEA EDITORIAL ADVISORYBOARD AND OFFICERS

PresidentCLAIRE W. LANAM

Vice -PresidentRALPH JOHONNOT

SecretaryKEN PRESTON

TreasurerPAUL E. FORT, JR.

BOARD OF DIRECTORSZONE A

Darrell Petzwal, 1627 19th St., Sacramento, Calif.ZONE B

Claire W. Lanore, 2466 Shattuck Ave..Berkeley, Calif.Wesley C. Keys, 2014 No. Main St., alnut Creek, Ccl.

Ralph L. Hoy, 912 A Street, San Rafael, Calif.ZONE C

Kenneth Preston, 4137 No Eldorado, Stockton, Calif.ZONE D

Russ Hamm, 4612 Soquel Dr., Soquel, Calif.ZONE E

George Morgan, 1616 E. Tulare, Tulare, Calif.ZONE F

Ralph Jobonnot, 1817 W. Verdugo Ave., Burbank, Ccl.Emmett Milford, 16820 Foothill Blvd., Fontana, Calif.

Don Reed, 9907 Honey Ave., Los Angeles, Calif.ZONE G

Paul E. Fort, Jr., 1546 30th St., Son Diego, Calif.

BOARD OF DELEGATESChairman

RON M. KEALEY657 E. Colorado St., Pasadena, Calif.

Vice -ChairmanEARL CAPP LOUGHBORO

2460 E. Main St., Ventura, Calif.Secretary

VIRGIL GAITHER4305 Eagle Rock Blvd., Los Angeles, Calif.

Legal AdvisorA. J. Anostosi, Commercial Bldg., San Jose, Calif.

CALIFORNIA STATEELECTRONICS ASSOCIATION, INC.

KEITH KIRSTEINExecutive Director3300 Watt Ave.

Sacramento 21, Calif.482-0706

Modern Electronic Service Dealer is Published Monthlyat 2930 W. Imperial Hwy., Inglewood, Calif. Phone:755.5261 by Associated Publications. Controlled circu-lation postage paid at Los Angles, Calif.

ima

1

FEATURE ARTICLES

11 Dealer Workshop Session A PETS Success

VOL. 2, NO. 11MARCH, 1963

18 How To Talk . . . Antennas To Your Customers ( A newseries beginning this month) by Robert D. Raynor

TECHNICAL SECTION

13 Let's Look At The . . . SELENIUM -SILICON CONTRO-VERSY

15 Inglewood Dealer Dave Garner Asks . . Color CRT Re-placements-Metal or Glass?

17 Test Equipment Topics: The Impedance Bridge

DEALER NEWS7 Joint Installation Dinner Held For So. Bay Chapters

7 Fresno CSEA Elects De Luca New President

7 Pasadena Group Receives Color Diplomas

7 CSEA Board To Meet April 7th

7 Sacramento CSEA Donates $40 Per Member To Fight Suit

7 Glendale Burbank CSEA Chapter Elects Officers

8 ArTRA Holds Installation Dinner

Whittier Chapter Elects Orico President

8 Zone "F" Officers Re-elected for '63

8 Chapter 1 Dinner -Dance Big Success

8 Board of Delegates To Meet In Fresno March 24th

8 Dues Increase Discussed by Zone "F" Council

rr

DEPARTMENTS

4 Editorially Speaking

8 President's Message

9 San Diego Chapter News

19 New Products

22 Classified Ads.

SPECIAL FEATURES

9 Receiving Tube Expiration Code Dates

12 Stolen Merchandise Report List

22 Tips For Better Business

COVERPictured on this month's cover is Mr. Dave Garner of Dave's TV, 818 Centinello, Inglewood,California. His question of whether or not to use glass CRT's as replacements for Metal is aninteresting one that more and more dealers are going to face within the near future. Theproblems and pitfalls are discussed in this article.

Winegard's 2-NuvistorColortron Antenna Amplifiers

Take your choice of Winegard's 2-nuvistor Colortron or single -

transistor Red Head antenna amplifiers - both great - both trouble -free!

Both work with any TV or FM antenna. Here's the story!

COLORTRON ANTENNA AMPLIFIER . . . ONLY $39.95EXCELLENT FOR COLOR WON'T OVERLOAD TAKESUP TO 400,000 MICROVOLTS OF SIGNAL

FINEST ANTENNA AMPLIFIER MADE. . . Because the COLORTRON amplifiertakes up to 400,000 microvolts of signal input,strong local signals won't overload and causeinterference on distant fringe stations. It takes20 times more signal input than any transistorantenna amplifier and without compromisingits ultra low noise ability to pull weak signalsout of the snow.

A special "lifesaver" circuit gives the 2 nuvis-tors an expected life of 5 to 8 years. It's theonly amplifier that's completely weather-proof-nothing exposed, even terminals are pro-tected. Install it and forget it! Fits any TV orFM antenna.

Colortron Amplifiers are Available in 2 Models for TV

FOR TV- Model AP-200N-twin nuvistor, takesup to 400,000 microvolts, input 300 ohm,output 300 ohm, $39.95 list.

FOR TV-Model AP -275, twin nuvistor, takesup to 400,000 microvolts, input 300 ohm,output 75 ohm, $44.95 list.

RED HEAD TRANSISTOR MODEL . . . ONLY $29.95FOR COLOR AND BLACK & WHITE MOST RELIABLETRANSISTOR ANTENNA AMPLIFIER EVER MADE.

With the Red Head, you won't have transistor"pop -out" because of its special advancedcircuit that protects against lightning flashes,precipitation static and power line surges.Has high pass interference filter, 2 -set coupler,fullyAC-no polarity problems. Tremendous-ly effective in remote areas where all signalsare less than 20,000 microvolts. Uses latestlow noise MADT transistor. Bright red am-plifier housing gives lasting product identifi-cation. The Red Head supersedes Winegard'sfamous MA -300 amplifier.

For TV or FM-Model No. RD -300, singletransistor, takes up to 20,000 microvolts, 300ohm input and output, $29.95 list.

Stereotron Amplifiers are Available in 2 Models for FM

FOR FM-Model AP -320, twin nuvistor, takesup to 200,000 microvolts, input 300 ohm,output 300 ohm, $39.95 list.

FOR FM-Model AP -375, twin nuvistor, takesup to 200,000 microvolts, input 300 ohm,output 75 ohm, $44.95 list.

Write for technical data or ask your Winegard distributor.

There's a Winegard Quality Antenna

for Dory Reception Need

A 1, ,

X T R 21111111PE Q

WINEGARD COMPANY 3024-3 KIRKWOOD BLVD.

ZCLORTFON ANTENNA

Model C44 God Anodized 564.95

C3L0RTRON ANTENNA

Model C 43 Gold Anodized 551.90

C]LORTROR ANTENNA

Model C-42 Gild Anodized S34.95

E0L0R1A0N ANTENNA

Model C-<1 Gold Anodized $24.95

ZICOIDECI... INT

elp rcar-dr_.aeryice dealer

EDITORIALLY SPEAKING

DON MARTIN

PETSHOW RECEIVES MIXED REACTIONSI don't know how we do it but the Los Angeles Chamber

of Commerce should certainly investigate the ability of thePacific Electronic Trade Show to produce rain. Two in arow record rainfalls is certainly a fete that would rival theIndian \Vitch Doctors and everyone in California is lookingforward to selling our vegetables in Florida this year. How-ever. it was disappointing to the people who worked so hardto produce the show and the net results certainly can beplaced in the "mixed reaction" category.

It seems to me that PETS is evolving into a basicallydealer show. The evidence this year was even mere pro-nounced with a great majority of those firms participatingleaning heavy on the dealer side. The re -action of the deal-ers who attended was IOW- better than in previous yearsand should lead to an even greater dealer attendance inthe future.

The exhibitor's reaction to the show was disappointingin that there were periods of togetherness for them withlittle viewer participation. The evenings were again the morepopular with attendance reaching the maximum around 7:00p.m. to 9:00 p.m. on all three nights. The vast majority ofthis late attendance was again in the dealer field.

In our opinion there was a great deal of informationavailable to the dealer trade and anyone who missed itshould make a mental note to take it in next year. We are infavor of PETS and sincerely hope it continues to succeed... minus the rains ... in future years.

ADD ON PETSWe were very pleased to visit with Mr. and Mrs. Bud

Pritchard of Fallon. Nevada. The couple were introducedto me by George Perry of kiesub Corp. who told me thatthe couple had read about PETS in MESD and decided toattend. Bud is the owner of Bud's TV & Electronics in Fallonand brought to my attention a particular problem that mayor may not be effecting other dealers in smaller communi-ties throughout the State. His problem has been with theNaval Auxiliary Air Station and 858th AC & W. U. S.Air Force bases near Fallon and the practice of some ofthe service personnel to go into the TV Service business asa side line. According to Bud. "it seems as though severalof these fellows have combined their duty time so that theycan offer 21 -hour service on TV repair, they have no over-head and have used Government tubes. parts. etc." Fallon,Nevada has a population of 3,500 people and a over-all 20mile surrounding population that totals about 8.000. Thereare presently five full time shops serving these people plusthe military.

Mr. Pritchard is interested in finding out if anyone elseis having a similar problem and would appreciate hearingfrom them. He can be contacted at Bud's TV & Electronics,155 Court Street, Fallon. Nevada.

PUBLIC RELATION FLOP ONYELLOW PAGE VICTORY

As most of you know, for months CSEA has been workingon a program that would change the Yellow Page regula-tions in regards to the mandatory listing of a business ad-dress. A few months ago this work ended with the passing.by the Public Utilities Commission. of new regulations thatwill govern this situation.

The need for a CSEA public relations program was nevermore apparent as the Better Business Bureaus and the APAproceeded to send out news releases that indicated that theyhad done this job. Our working relationship with thesetwo organizations is very close and through many jointefforts we have been able to relieve the general public of a

gread deal of the fraud problems that have existed. How-ever, it still remains that the bulk of the work to regulatebusiness address listings in all Yellow Page advertisingstemmed from CSEA with our Association receiving verylittle credit. It was a great victory and the entire Associationcan be proud of the part they played in solving one of thebasic problems of our industry. It is just a shame that thegeneral public isn't aware of the work that has been ac-complished.

CAUTION TO SOUND ANDANTENNA SYSTEM DEALERS

An event of special concern has recently taken place as

one Oxnard Dealer is facing the closing of his shop and pos-sible criminal action due to his installation of a sound sys-tem in a local school.

Many dealers throughout the state are presently doing agreat deal of Sound and Antenna System Installations andunknowingly, may find themselves in a similar situation.

Under the State of California Contractor's License pro-gram there is a classification known as "Electronic Contrac-tor" and anyone doing a sound or antenna installation thathas a cost of over $100 must be licensed under this sectionin order to do this type of work.

It seems strange to me that since most contractors, whetherelectrical or general. have very little knowledge of this typeof installation that these categories would be so classified.It also makes little sense to me that a TV dealer must belicensed under the "Electronic Contractor" program inorder to do TV antenna system installation work or soundsystems and yet there are those who have been opposed totheir efforts to become licensed as a group. If any of youare doing this type of work it might be a good idea to in-vestigate your own situation and how it is effected by the"Electronic Contractor" laws.

6 MODERN ELECTRONIC SERVICE DEALER

PEdates

CSEA NEWT WIREdealer news programs

Fresno CSEA

Elects DeLuca

New PresidentFrank DeLuca was recently elected as

president of the Fresno Chapter ofCSEA. His election came at the annualmeeting of the Board of Directors.

Others placed in key positions are:Bob Cobb. vice-president; Frank Man-cini, secretary and Al Chesser, treasurer.Fred Mealer was chosen to replace AlRoach as a member of the Board ofDirectors.

President elect DeLuca asked allmembers of the group to take a look atthe industry and in all ways be an assetto their chosen profession. He went onto comment on the great strides beingmade in the electronic field and felt thata sincere desire to serve the publicshould be continued.

The Fresno Chapter has engaged theservices of Jimmie Wakefield as Man-aging Director. He is the former Execu-tive Director of the State Association.

PASADENA GROUP

RECEIVES COLOR

DIPLOMASDiplomas were distributed at the

recent meeting of the Pasadena AreaChapter of CSEA. Guest speaker IryTjomsland handed out diplomas to thosewho have completed the Color Clas-.sponsored by the Pasadena Chapter.

Augmenting the meeting at the VASAHall was the talk presented by Tjoms-land. His discussion was mainly cen-tered around the Calibration of TestEquipment.

CSEA BOARD TOMEET APRIL 7TH

The next Board of Directors meetingof the California State Electronics As-sociation will be held on Sunday April7th at the Hyatt House next to the LosAngeles International Airport.

Board members are urged to maketheir own reservations for this date assoon as possible.

Joint Installation Dinner HeldFor So. Bay Area Chapters

A joint installation Dinner -Dance was held on February 23rd at the Sportsnans

Club in Downey for three CSEA chapters and the Long Beach RTA with over 75

members. their wives and guests enjoying the buffet dinner.

Installed as officers in the Los Cerritos chapter were Harold Hultman as President.

Walter litmdquist as Vice President and

Secretary and Bob Whitmore as the new

Treasurer.

SACRAMENTO CSEADONATES S40 PERMEMBER TO FIGHT SUIT

The Sacramento Chapter of CSEAhas pledged $40 per member towardsthe cost of the present law suit broughtagainst one of their members and theState Association by a Sacramento Serv-ice firm.

The Los Angeles chapter has pledged$100 to this fight and has urged allother chapters to contribute as much aspossible. All contributions. whether youare a member of CSEA or not, shouldbe sent directly to the State Office at3300 Watt Avenue in Sacramento andindicate what it is to be used for. Thisis a fight for every legitimate servicedelare in the State and is not justCSEA business. The only way in whichthe public can be defended and ourindustry placed on an ethical plain isthrough a r,nitn'ratye effort of the etirei whist ry.

Glendale -Burbank

CSEA Chapter

Elects OfficersMr. Lull Sheldon. a representative

from Woodman Life Insurance Com-pany. and Mr. Kessinger of Pacific Tel-ephone. served as guest speakers at thelast meeting of the Glendale -BurbankCSEA chapter.

A film was shown, and Mr. Kessingerelaborated on how the Telestar was de-veloped. launched in space. repaired inspace. and used for transmitting mes-sages and TV programs. Earl Sheldonconcluded the discussion, answering allquestions on CSEA group insurance.

New officers were elected on Feb. 14,and they are; Buzz Seal, president;Everett Pershing. vice-president; RalphSingelton, secretary and Jimmy Scar-borough, treasurer.

From the San Antonio chapter were:

Andy Goodwin as President: Burr Dval

as Vice President: Fred Bowerman as

Secretary and Stan Young as Treasurer.

In the So. Bay Chapter they re-elected

Don Heed as the President: Clarence

Adams as Vice President: Willard

Gravel as Secretary and Jim Hendricks

as Treasurer.

The Long Beach HTA has named as

their new President Mr. Ray Boswell.

Ted McLaren takes over as Vice Presi-

dent and Frank Dishon as Secretary.

Harold Barringer is the new chapter

Treasurer.

The entire program was M.C.'d byBob Birdsley of Hurley Electronics in

Long Beach. Bob presented plaques to

the outgoing Presidents of the four

groups including: Harold Huffman of

Los Cerritos; Don Heed of South Bay:

Frank Kennedy of San Antonio andFred Ivey of Long Beach HTA.

It was also announced at this meeting

that the group will joint sponsor a color

and UHF course featuring Tom Clem-

ents of Hickok at the Western Club.

15516 So. Western in Gardena on April

3rd. All members and interested parties

are invited and there is no charge.

MARCH, 1963 7

monizrzq

818P-t-a-=Mir-AECVICE deater

PRESIDENT'S MESSAGE

Sometimes our opposition is open andbrutal in a powerful arrogance that ex-hibits their belief that they are power-ful. Sometimes it is soft and subtle inan attempt to lull us into a sense ofwell-being.

We areI. Attempting to better all standards

in our trade and by doing so we areprotecting the consuming public by themeans that we know is safe and sure.

2. Not asking for political favors.3. Not asking for monetary gain.1. Willing to pay and carry our load.5. Asking that the authorities and our

opposition be fair. or do they prefer tolet the public stiffer.

We are asking and it is so little-letus have the tools, the teeth that willmake our ideals come true. In someways we are a small segment of indus-try. but remember our Radio and Tele-vision service business is much largerthan Radio and Television sales.

We. in unification, are in commandof a vat network of public information,

ACTRA HoldsInstallation Dinner

The ACTRA Chapter of CSEA heldtheir annual installation dinner on Feb-ruary 16th at the Renard's of AlamedaRestaurant.

Mr. Kent D. Pursel, Chairman, Al-ameda County Board of Supervisors wasthe installing officer for the event thatsaw Allan D. Crawford of El CerritoTelevision and Radio Sales became thenew President for 1963.

Other officers installed at the. sametime were: John Edwards. 1st VicePresident; Norman James. 2nd VicePresident; Fred Rock. Secretary; andBob Howard as the new Treasurer.

The evening was open to everyone inthe industry and many non-members.Distributors and friends took part in theevent that included a prime rib dinner.cocktails and dancing.

CLAIRE W. LANAM

at some time all of us have an entryinto all homes. any word from us on asubject that is to their benefit and ob-viously fair, Iwill .e well received.

Opposition will bring our unification.It is time that we move in unison andnotify our opposition of our intentionsso that the authorities may get a trueperspective. Let's put teeth in our regu-lations or throw them all out. Let's no-tify those who arrogantly try of tell uswhat to do. that we have the capabilityto oppose them and win. We cannot useany method that will be the subject ofofficial condemnation but we can act asindividuals. We can select and approveof only the products which we reallybelieve are good and likewise of thecompanies behind them.

If other groups want cooperation letthem back us. not fight us.

Now is the time to lay our plans.subtle or brutal.

Whittier ChapterElects OricoPresident

The Whittier Chapter of CSEA re-cently elected their new officers for 1963.The new president of the group is Mr.Eugene Orico. Mr. George Pensolle wasnamed as the new Vice President andDonald Doyen as Secretary. Mr. JosephMonck was named to the office of chap-ter Treasurer.

ZONE "F" OFFICERSRE-ELECTED FOR "63"

The Zone "1- Council. at their Feb-ruary meeting. re-elected the entireslate of officers for the coming year.

Mr. Hugh Wilkins was named aschairman %% jilt Everett Pershing retain-ing the .position of vice-chairman andHarry kiyomura as Treasurer. Mr. AlAird. last year's secretary was forced toresign his position and Mr. VirgilGaither was named as the new ZoneSecretary.

CHAPTER No. 1

DINNER -DANCE

BIG SUCCESSThe El Rancho Hotel in Sacramento

;Is the scene of a dinner -dance. Jan.26. The gala event N1:IS sponsored bythe Sacramento Chapter of CSEA.

Chapter 1 hosted the CSEA Presi-dent and Board of Directors. along with10 members and their wives.

Introduction of CSEA guests to thegeneral membership was the main pur-pose of the event.

A speech concerned with the life ofa service man was also presented by thelocal Chapter president.

Board of DelegatesTo Meet In FresnoMarch 24th

Mr. Ron Kealey. Chairman of theBoard of Delegates has announced thatthe semi-annual meeting of the Boardof Delegates will he held on Sunday\larch 24th at the Town and Country\Intel in Fresno.

Mr. Kealey also pointed out that thefirst order of business is the discussionof the proposed by-laws change thatwould demand an annual election ofofficers at a convention. At the last meet-ing. delegates were asked to considerthese by-law changes and indicate toHugh Wilkins, the originator of theproposed change. their desires. Allchapters are requested to discuss theproposal and to instruct their delegateshow to vote on the issue.

Dues Increase Discussedby Zone "F" Council

The proposed dues increase for allZone 'F" members %%as discussed atthe February meeting of the Zone. Un-der the proposal. the dues would beincreased from the present 88¢ permonth to $3.00 per month with thefunds to go into an all out public rela-tions program as well as to establisha sound zone office.

Since all delegates had not contactedtheir chapters and since there seemed tobe some confusion. action was deferreduntil the next meeting in March. TheCouncil did take action that wouldamend the dues increase. if it is o.k.'dby the chapters. to allow up to half ofthe amount collected $1.50 to be re-funded to the outlying chapters for theirown program. This was passed and willgo into effect when the dues are in-creased.

MODERN ELECTRONIC SERVICE DEALER

CHAPTER OFFICESSAN DIEGO #133318 Idlewild Way

274-2320San Diego 17

NORTH COUNTY #18930 S. Santa Fe Ave

Vista, Calif.

California State Electronics Association

SAN DIEGO NEWS

NEXT MEETING

CHAPTER 13

To Be Announced

CHAPTER 18

TO BE ANNOUNCED

VOL. 2, NO. 6 MARCH, 1963 Editor: ED FORT, JR.

Summer BowlingLeague BeingFormed

It will soon be time to start organizingour summer howling teams. Since every-one had such a good time last year itwas felt that there might be enough in-terest that we could form a full league.We would need only about eight to tensponsoring shops. The members of eachteam would not necessarily have to be inour industry. This means if you are cur-rently sponsoring a team in a winterleague they could represent you in thisleague also. If there are any individualswho wish to bowl just call the office andwe'll get you on one of the teams.

SAN DIEGOBUSINESS INDEX

HITS92%

IN JANUARY

Color and Transistor SessionsSlated For April 1 and 2

San Diego ChaptersMake DonationsTo "War Chest"

At the last board of directors meetingof both the San Diego and North CountyChapters authorization was given to senddonations to state for our public rela-tions fund. $200 was sent from the SanDiego and $75 from North County Chap-ter. This money will be well spent. Thereare some unscrupulous forces doingtheir best to break C.S.E.A. and to dis-credit what we stand for. This is one ofthose times when second best is notitough. We must win.

Put a red circle around the dates ofApril 1st and 2nd. These are the datesof the color transistor presentation spon-sored by Hickok. April 1st Mr. Shum-way will be in north county and in SanDiego on the 2nd. C.S.E.A. will co-spon-sor both lectures with Hurley's in NorthCounty and Radio Parts in San Diego.

This should he an evening well spent.I've had an opportunity to ask a few ofthe fellows up north just how good thiswas, and the replies indicated that noone had been disappointed. Mr. Shum-way dispenses a maximum of informa-tion with a minimum of commercials.His approach to the servicing problemsis as a technician instead of as an en-gineer. You will receive notice as to theexact time and location of each meet-ing.

1963 EXPIRATION CODE DATES FOR RECEIVING TUBES

Expires Standard* RCA Raytheon Sylvania

MAR. 31 62-13 MO K-20 JD

APRIL 31 62-17 MR K-18 JE

MAY 31 62-22 K-16 JF

JUNE 30 62-26 MT K-14 JG

JULY 31 62-30 MU K-12 JH

AUG. 31 62-35 MV K-10 JJ

SEPT. 30 62-39 MW K-08 JK

OCT. 31 62-43 MX K-06 JL

NOV. 30 62-48 MY K-04 JM

DEC. 31 62-52 MZ K-02 KA

*STANDARD-The EIA standard four digit code number system is used by many brands.The first two digits indicate the year. The remaining two digits identify themonth by referring to a week of the year included in that month. Brandsusing this system include: C.B.S., G.E., Philco, Westinghouse, Zenith.

MARCH, 1963 c

S GN UPfor more business

with colorful service signs from RCA

RCA signs for service technicians:

Identify your business

Call attention to your services

Dress up your shop or truck

Associate you with the prestige andcustomer acceptance of RCA-the mosttrusted name in electronics

Another Way RCA Helps You in Your BusinessRCA ELECTRON TUBE DIVISION, HARRISON, N.J.

RADIO TV HI -Fl

SERVICEwith RCA tubes tti: ;

.M1-1Metal Outdoor Hanging Sign-double-faced withhanging bracket, 40" x 28". (1A1275)

RADIO SERVICEEawith RCA tubes

AllPurpose Panel Sign Kit-for wall, truck.anyplace. Contains two 40" x 14" signs.(1A1278)

RADIO TV HI -Fl

SERVICE/with RCA tubes ea,

Metal Wall Sign big 40"k 28" size. (1A1276

RADIO DEMSERVICE

RCA lubes

Metal Flange Sign -18"12" for outdoor -indoordisplay. (1A1277)

SticTZtiLESFOR

RADIO DIMDecal -121/2" x 81/2'-for wall, window, door,or truck. (1A1229)

All available from your Authorized RCA Tube Distributor. See him this week.

The Most Trusted Name in Electronics

AUTHORIZED RCA DISTRIBUTORS

DUNLAP RADIO &TV SUPPLY CO.

Serving the "Heart"of California

RADIO PARTS CO. ANDREWS2060 India St.

BE 9-6112 ELECTRONICS1500 W. Burbank Blvd., Bur)ank

TH 5-3536

WESTERN RADIO &TELEVISION

SUPPLY CO. INC.1415 India Street, San Diego

BE 9.0361

CALIF32t. STATE ILECTRONICS ASSOCIATION xi

A (% AA 11011Pl6M COMM" 5LP III 11.00NM 111601 tte wart I nks STATE

I.e'Ri ov;vo it:;:i rtiigr.,,t,:t..':-4...,04, - C`cS IS [LOWS Alla wasSAIL R ASSMAt ORS RATION wet

4 r nt MASI OSSOMIUll 01 IWO(S _1N1 RAMS IN OMR SIMS WNW IA

4.1 fIlf til.K47:;! IfilIC XV ,,,'NG , v. N. /k 017 M .4.111,1c.16 .101.1S WC Mr Vit0., 1.0.66. V eV,' Pictured here is the CSEA Booth at the PETSHOW along with some of

the members who attended the booth. The map on the right hadcolored lights representing the different chapters and the sign on theleft told the CSEA story. A closed circuit TV was also in operationin the booth and attracted a great deal of attention. Pictured left toright are. Everett Pershing, Ron Kealey, Ralph Johonnot, Hugh Wil-kins, Emmett Mefford and Don Reed.

DEALER WORKSHOP SESSIONA PETS SUCCESS

The Dealer Workshop Session, held inconjunction with the Pacific ElectronicTrade Show, was considered, by over200 dealers who attended, as one of themost unusual and best ones ever held.

Under the sponsorship of the Califor-nia State Electronics Association and itschairman Ralph Johonnot, the dealerssaw for the first time a 3 -inch deep Tele-vision Picture Tube that is due to gointo production for the Military withinthe next two years and commerciallywithin the next five years.

In introducing Dr. Willard Geer, Mr.Johonnot pointed out that in addition tohis position as vice-president of theVideo Color Corp., in Inglewood, he is aDirector of the Physics Laboratory atthe University of Southern Californiaand has patents and patents pending inlow work function cathodes for theminionic diodes, improved thermionicdiodes, basic patents on color TVscreens, and developments in the field offluid and vapor orientation of solar en-ergy collectors, fluid and vapor orienta-tion of satellites and magnetic orienta-tion of satellites.

In his presentation. Dr. Geer pointedout that, along with Dr. Ross Aiken an-other Video Color executive, they expectto produce a working color picture tubcwithin the next few years. That, at the

present time, they are producing blackand white results on the 3 -inch tube butare interested in perfecting the full colortube before releasing it for commercialuse.

Because of the highly technical lan-guage of his presentation we have askedDr. Geer to produce an article for a fu-ture issue of MESD. He has agreed todo this and it will be pre,rited as soonas possible.

Color Round TableFollowing Dr. Greer was one of the

most interesting round table discussionsever held. At the same table and on thesame program were three representa-tives of the nation's top color Television

Mr. Charles Wack of RCA,second from right, answers adealer's question while otherpanel members listen. At thefar left is Mr. Harry Hootenof Zenith. Next to him is PaulPekarsky of Packard Bell, Mr.Wack and Ralph Johonnot,CSEA PETS Chairman.

producers RCA Victor. Zenith and Pack-ard Bell.

The panel made up of Mr. CharlesWack of RCA, Mr. Harry Hooten ofZenith and Mr. Paul Pekarsky of Pack-ard Bell each presented a 10 -minutespeech on their particular products.This, in turn, was followed by directquestions from the floor that ended ina two hour panel discussion betweencompetitors on the relative merits ofeach product and the dis-advantages ofeach as well. For the first time, to ourknowledge an accusation could be madeand answered at the same time. From

(Continued Next Page)

STOLEN MERCHANDISEREPORT LIST

Stolen from Date Make Model Serial No

Ludlow TV Sales 1/21/639335 Long Beach Blvd.Long Beach, Calif.

Gillon RadioPalmdale, Calif.

Powers TV

3619 Cutting

Richmond, Calif.

11 9 62

P.B. 1979A 155204

Z -TV K2211J 5960942Z -TV K2717W 7007589Z -TV K2109J 5999532Z -TV K2020J 5881509Z -TV K2005F 5956321Z -Stereo KP580C 0268

12 8 62 GE M502XBN 981336GE R608XVY 634356GE M206XON 549527Du Mont Bon Voyage 296033

Leon Block Radio Service 1 2/ 633801 W. JeffersonLos Angeles

Guide Eye Checker

Eico 6-12V Pwr. SupplyHeath Signal Tracer

N.V. Pic. Tube Checker

Delco Radio

AE 5369

98394520 New Motorola Car Radios200-300 Assorted Tubes

Hoyt's Corner Superette 2 9 63 Motorola 421T18M D1402949700 Main St.

Lament, Calif.

TEAR OUT AND SAVE FORFUTURE REFERENCE!

Store

Address

Mr

Stolen Merchandise Report Form

CLIP AND MAIL

Serial No.

the results of this program, many CSEAchapters are already putting the wheelsin motion to set up similar discussionsthroughout the State.

UHFThe KMEX story was next on the

agenda with David Graham explainingthe problems of programing, timing,etc., that must bridge the language andcustom barriers of two countries, KMEXhas uncovered certain problems that arebeing corrected including a weak signalin the close areas and a strong signalat a distance. This is being correctedand should be eliminated within thenext few weeks.

Mr. Bob Snyder of Jerrold then ex-plained the important part that Anten-na systems are playing and will play inthe future of UHF reception. Many ofthe present systems will have to bechanged over and it is up to the dealersto learn what can be done to convertthese and how they can become a partof this market.

State of the IndustryOne of the highlights of the Work-

shop Session was the "State of the In-dustry" discussion that took place be-tween Mr. Kieth Kirstein, CSEA Ex-ecutive Secretary, Mr. Vincent Thorpe.Assistant Attorney General, FraudDivision for the State of California and:11r. Robert Mott, representing the LosAngeles Better Business Bureau.

Out of the discussion the most sig-nificant comment was made by Mr.Thorpe who stated that "THERE WILLBE A LICENSING LAW" and thatanyone interested in their industry hadbetter become a member of some dealerorganization in order to have a voicein how it is written. As you know, theGovernor has indicated that he willback such legislation in this session andthat it will actually be a "Registrationof all those engaged in the servicing ofdomestic electronic products for com-pensation." Under this law every servicedealer well be required to register withthe State of California and a board willbe set up to hear cases of alleged fraudthat could end in the revoking of thisregistration and criminal prosecution asa misdemeanor.

Mr. Mott of the B. B .B. re -stated theBureaus stand in regards to fraud inthe TV Service Industry and indicatedtheir full cooperation with CSEA andgroups of this nature.

A special thanks was extended to allof these gentlemen by the chairman fortheir participation in this outstandingprogram. Mr. Johonnot also pointed outthat the post card mailing announcingthis event should be credited to AndrewsElectronics who supported the Work-shop 100%. He also indicated thatAnderws Electronics and Dean's Elec-tronics were responsible for the pay-ment of the admission charges to thesession itself.

12MODERN ELECTRONIC SERVICE DEALER

An MESD Special Feature

For The New Man

Let's Look At The ...

technicalsection

An MESD special feature********************************

Iry Tjomsland, Editor

SELENIUM - SILICON

CONTROVERSY

The "TV SERVICE" sign on thefront of your building is new. Theshelves and workbench are freshlypainted, the test equipment sparkles, andthe replacement tube cartons are cleanand bright. You are ready for business.

You notice the car as it stops at thecurb. Your interest rises as you see thedriver open the trunk and remove-achassis and picture tube assembly-withno cabinet? Yes, and when he depositsit on your counter with the statement:"This job needs some finishing touches:The hard work is done, but there is "alittle" something wrong yet. Can you fixit, now?" you start to worry.

You unconciously reach for a cheatercord when you notice the bare ACreceptacle. The owner appears to bewaiting, so you gingerly plug in thepower and look for the switch. Just intime you remember that the inside shaftpulls out, rather than turns clockwisefor "On." When you note the momentaryflare-up in the heater of one of the tubesyou belatedly realize that the receiverbelongs to the "Series Filament" family.Sure, and there are the two-no, notSelenium, but Silicon rectifiers.

At this moment the raster appears. Itgrows rapidly until it covers the face of

the CRT, and then continues to expanduntil you can see signs of corner shadow.The picture has a rather dull, poorlyfocused look, so you instinctively reachfor the Ion Trap, and suddenly youhave a very bright picture.

Your questioning look prompts thecustomer: "It won't stay like that verylong. In about twenty minutes it willpull in from the sides, and if you don'tturn it off, the light will go out."

You check further. A brand new cantype electrolytic seems to indicate thatthe power supply has been reworked.You gently raise the assembly to lay iton its side for better viewing of thecircuitry, and suddenly the new electro-lytic lets go with a popping sound andsteam hisses as it emerges from the base.You jerk the cheater cord from the re-ceptacle, and turn to the owner:

"Funny, it never did that before," hecomments.

"Better tell me what has been done.and by whom," you suggest.

"Well," he begins, "I pick up partsat a wholesale place for the companywhere I work, so when the picture onthis set narrowed down, I asked thecounterman what to do. He looked upthe circuit and said that I probably

needed new rectifiers, and he mentionedthat he had a new kind that made thepicture wider. He drew a little chart thatshowed how to take out the two old partsand replace them with this little blockdeal, but I must have 'goofed' someplace because I couldn't make the setcome on until I soldered a wire acrossthis brown gadget. Next, the white stuffstarted to come out of the can, so I tookit out and got a new one from the samefellow that helped me the first time."

You make a spot diagnosis: "Some-thing is radically wrong. and I am goingto have to make a thorough check beforeI'll believe that set is not a fire trap."The customer agrees sadly, and talksvaguely of calling you Monday.

DIAGNOSING THE PROBLEM:When the customer leaves the store

you feel free to attack the problem, andyou will do well to review the things"you know for sure" before you go muchfurther. As you think back to the cus-tomers story, and your own observations,the hits and pieces line up like this:ITEM l: The picture was narrow, notoversize, with the original rectifiers. Didthe problem start there, or was thereother trouble?

MARCH, 1963 13

ITEM 2: The replacement filter canheated up, when you normally think ofthe input filter unit running cool.ITEM 3: The set would run for twentyminutes and then "pull -in" from thesides and the light (raster?) would goout. Did the electrolytic overheat andstop working or is there trouble in thehorizontal output circuit?ITEM 4: The "brown gadget" (fusetype resistor) is jumpered. Is it just afuse, or does it affect the rectifiersystem?ITEM 5: If you have it fixed Monday,will it stay fixed?

As you review the known facts andthe unanswered questions you decide tolook for information. You remember the"New Man" article in the last issue ofthe MODERN ELECTRONIC SERVICEDEALER magazine and the promise tohelp with technical questions. When youmake contact with the technical editoryou are primed and ready.QUESTIONS AND ANSWERS:YOU ASK: Is it practical to installSilicon rectifiers in a chassis whereSelenium recifiers were used as originalequipment?ANSWER: Yes, Silicon rectifiers offermany advantages if you take certainprecautions when you make the substi-tution. (You think: The cost of the jobjust went down a little.)YOU ASK: What precautions do yourecommend?ANSEWER: Install enough additionalresistance between the AC line and theinput to the rectifiers to limit B+ at therectifier output to the same value as thatproduced by the original Selenium recti-fiers as shown in your Photofact folder.

Since the internal resistance of theSilicon rectifiers is much lower than theoriginal Selenium rectifiers, willtend to be much higher and cause over -dissipation trouble. In addition, thelower resistance will permit higher peakcharging current to flow in the capaci-tors which may cause failure of therectifiers and/or capacitors.

A good method to overcome theseproblems is to install a second fuse typeresistor in series with the original peaklimiting unit, and use a size that willreduce B-1- to the original value speci-fied. Incidentally, don't forget to estab-lish the bench line voltage to the valueindicated on the schematic before mak-ing the II+ adjustments.(You mentally note that you won't haveto ask if fuse type resistors are part ofthe circuit, not just fuses.)YOU ASK: I never thought that B+was such a critical factor, or at least Ihaven't heard it mentioned before. Isthere any guide to how much variationis safe?ANSWER: B+ will vary with changesin line voltage, and most receivers are

designed to permit some line voltagevariation. If you make circuit changesthat affect B+, you will not only causechanges in height, width, brightness, andsensitivity, but you will probably elimi-nate the ability of the receiver to copewith normal changes in line voltage.Another point to remeber is that forevery volt you raise B+ above specifica-tion, you can expect the plate current toincrease 1 ma in circuits, such as thehorizontal output stage. One volt, or onemilliampere will not bother, but twentyvolts may cause an increase of twentymilliamperes in the flyback and hori-zontal output stage, and you have set upa fine chance for over dissipationtroubles.YOU ASK: Are you suggesting that thereason the raster would "pull -in" aftertwenty minutes was due to high B+,and not to other trouble in the flybackcircuit?ANSWER: That question brings upmore possibilities than all your problemsso far, but when you "know for sure"where you stand on B+ you can makesome very valuable sweep measurements.For instance: If width is normal, boostand high voltage close to spec, and yousee no signs of "cooked" screen resistors,width coils, or sweep components, youcan expect the receiver to operate with-out too much trouble.

You should remember that a screenvoltage test is not very helpful, becausethe screen circuit tends to act as a voltageregulating circuit, and small changes inscreen voltage may not "tip off" largechanges in screen dissipation whichare usually associated with "pull -in"troubles.

DOING THE JOBNow that you have some information

you attack the problems. First you breakout the circuit schematic and you notethat B+ should he 260 volts if the totalplate current is 220 ma at a line voltageof 117.

You connect your Line Adjustingtransformer, and with the help of yournew AC meter you adjust for 117 volts.

You disconnect the "steamed out"filter and provide a substitute by usingyour bench capacitor box. You adjustthis to 150 mfd to substitute for the 140mfd unit called for in the print.

You switch your meter to "DC Volts,500" and connect it to the output of therectifier system.

With your hand on the cheater cordyou warm up the receiver again.

The meter indicates about 320 voltsat first, and gradually drops to 300. 40VOLTS HIGH! You disconnect powerimmediately, and remove the jumper onthe fuse type resistor. The original 7.5ohm unit is open so you replace it.

You reconnect the receiver, and notethat II+ is now 277. Still 17 volts high,

but closer. You install a 10 ohm fuseresistor in series with the 7.5 ohm.drops to 263 and you try two 10 ohmunits to find the voltage reading 260,as called for in the schematic.

You disconnect the output side of thefilter choke to measure the total currentflow. It is less than 225 when the speccalls for 220. Can't be much of an over-load any place, you decide.

You turn your attention to the fly-back circuit. The raster appears of overscan about 34 inch on either side, andyou see no abnormal factors such asdrive lines. You check the boost voltage.The spec calls for 450 and you findabout 460. High voltage should be 12KV and you measure 12.4. You checkthe screen: 115, just as called for, butyou go one more step and measure thevalue of the screen dropping resistorwhile it is hot, and find it to be 18K asit should be.

You decide to experiment a little:You attach your voltmeter to the boostline and momentarily short out the two10 ohm fuse type resistors, and beforeyou can check your voltmeter you seethe picture has increased in size to whereit looks like you have a 90° picture ona 70° tube. The meter indicates 495volts and you have an idea you knowwhy the output stage over -dissipated and"pulled -in."

You check further: You attach yourmeter to the B+ line and lower yourAC line to 110 volts. B-+- drops to 250.You increase the line to 125 and B+rises to 273.

You begin to feel as though you havecontrol of the situation. You restore theline to 117 and with a sharp eye on theset for changes in width and brightnessyou let it run. When it performs wellfor an hour, you relax some of your vig-ilance, but let it finish out the day onthe cooking table.

CONCLUSIONS:

The "Do -It -Yourself" type was aparts changer, and all he got for hiseffort was trouble and expense.

You analyzed the circuit operation.and with a single change (the cor-rection of the resistance in the AC inputcircuit), you restored the receiver tooperation.

By using accurate equipment, andapplying the circuit factors you "knewfor sure" you proved that a sticky prob-lem was measurable and the results pre-dictable.

Sarkes-Tarzian. manufacturer of rec-tifiers, has prepared an interestingbooklet on Selenium, Silicon. and SiliconControl circuits. A free copy will besent to you if you will forward yourrequest to the editor at the MODERNELECTRONIC SERVICE DEALER,2930 W. Imperial Hwy., Inglewood.Calif.

14 MODERN ELECTRONIC SERVICE DEALER

An MESD Special Feature

Question Of The Month

Inglewood Dealer Dave Garner

Asks

COLOR CRT REPLACEMENTS

METAL OR GLASS?

QUESTION:I have an RCA 21 -CT -661 in the shop for replacement of

the color CRT. I have ordered a more modern glass versionto replace original metal 21AXP22. What problems will I

encounter in making the conversion?

THE SOURCE:Dave Garner of Dave's TV, 818 Centinella, Inglewood,

shown with the receiver in the cover picture, asked thequestion. Because of availability and time limitations hehad agreed to accept a 21CYP22A instead of the 21FBP22he had originally ordered.

A QUESTION OF POLICY.Dave was concerned with the fact that such a conversion

appeared to be in conflict with a basic service principlewhich holds that a serviceman's responsibility is limited torestoring performance to the standard provided by thereceiver when it was new and in good working order. Inother words: the purpose is to restore operation, not re -engineer the customers equipment.

To conform to this concept he would have to use a21AXP22k with a lower light output, and he could expectthat some of the problems discused in last month's MESDarticle "To Bloom Or Not To Bloom" might develop. Wouldthe advantage of the higher light output glass CRT offsetthe extra work and responsibility for making the change,or would sticky physical and electrical problems make thejob unprofitable?

PHYSICAL PROBLEMS:The physical specifications were compared and fotonl to

be as follows:CRT TYPE FRONT DIA. ± LENGTH ±21CYP22A 20 13/16 1/8" 25 1/32 3/8"21AXP22 20 9/16 1/8" 25 5/16At the first glance the front diameter of the glass CRT

looked like a source of trouble, because the glass tube wouldhave to fit the same cabinet mask as the original metaltube, and by spec was 1/4" larger. However, it was noted

that the metal tube was enclosed in a liner and boot andthe mask was made to receive the whole assembly whichhad a greater overall diameter than the glass CRT, andthe problem disappeared. The length of the two types wassimilar, and it was apparent that no major yoke relocation,or hack panel changes would be required.

In the original installation the CRT is drawn into themask by means of a Kinescope Mounting Ring and threepull rods. A yoke shield attaches to the ring, and this inturn supports the yoke and provides for positioning adjust-ment. It was apparent that the original assembly could beused to position the new glass CRT if danger of the metalring scoring the glass envelope could be eliminated.

The glass bell had some curvature or bulge, instead ofhaving the straight cone sides of the metal CRT and themounting area was checked for interferinfie....mounting area was checked for interfering brackets, super-structure, etc., which might make the job difficult. Nonewere found.

ELECTRICAL CONSIDERATIONS:Tube manual data indicated that two anode contact

buttons and a 56K resistor would be required for the highvoltage feed. The original brass strip contact to the metalCRT looked as though it could be reworked to provide an

(Continued Next Page)

FIGURE

MARCH, 1963 IS

aquadag ground.Specifications for screen, cathode, grid. focus, and other

voltages appeared to be similar. and it was decided to by-passthese problems until the new tube was installed.

Before the installation was started the chassis was givena thorough check for poor tubes. rectifiers, and regulator. Ahorizontal centering pot was replaced and several smalltubes were substituted.INSTALLATION OF THE GLASS CRT:

Mechanically Dave encountered few problems. Part of theoriginal liner was used to protect the glass envelope at thepoint where the mounting ring made contact.

To others who make the change, Dave offers these sug.gestions: The glass CRT will fit into the mask indentationsand remain centered if the pull rods are tightened properly.If the cabinet is placed, face down, on a blanket and threeshims are used to center the CRT in the mask it will beeasy to tighten the pull rods in such a way that the yokehousing will center the yoke on the neck of the picturetube, and purity adjustments will be simple.

Fig. 1 shows the receiver with the new CRT mounted, andthe vinyl covered resistor can be seen between the anodebuttons at the right of the picture.

The magnetic field equalizing assembly was removed, andwith minor degaussing, purity adjustments were simple.and results excellent. Convergence took more time, but Day:.felt that the glass tube required less effort for the completeconvergence job that the metal tube required for touch-up.

All in all. the complete job progressed smoothly andrapidly, with no unusual problems. Brightness, contrast.and color values were improved markedly, and no lack ofadjustment range was encountered in screen, background.or focus controls.COMMENTS AND CONCLUSIONS:

Many servicemen have felt that the "Magnetic Field Equal-

izing Assembly" irreverently referred to as the "horse collar"provided a mixed benefit in edge purity control. While itis admitted that edge shading could be controlled, or atleast changed, by adjustment of the equalizing magnets, thesuspicion lingered that these same magnets also introducedpart of the CRT envelope magnetication which caused theoriginal trouble. Since this assembly is not used with theGlass CRT an annoying type of customer complaint ispermanently eliminated.

A visiting serviceman remarked that the performance ofthe 1955 model with the new tube was far superior to hislater model equipped with a late run of the metal tube.

The question will naturally be asked: Would the 21FBP22(Sulphide) CRT have provided added performance over the21CYP22A?

The answer would no doubt be determined by the per-formance of the individual tube. Both use the "Graded"holes in the shadow mask and would tend to respond in asimilar fashion to purity and convergence adjustments, butwith everything else equal, the Sulphide tube should givesubstantially more brightness, contrast, and color impact.

As mentioned last month, these advantages become muchmore obvious when the receiver must compete with daylightor excessive room lighting.

In conclusion, it must be emphasized that color receiverchange or conversion should not be attempted without someprecautions. It is a very simple matter to become involvedin a project where so much special circuitry research isnecessary before the job can be delivered that you cannotpossibly recover your cost in the customer billing.

In the instance outlined above. Dave was successful, butit must be remembered that he stood ready with a great dealof equipment, experience, and information to attack anyunusual problems that might have developed.

A Special Announcement

. . . of interest to our readers, advertisers and potential advertisers is, thatbeginning with the April 1963 issue of MODERN ELECTRONIC SERVICE

DEALER MAGAZINE . .

OUR TECHNICAL SECTION WILL

BE DEVOTED EXCLUSIVELY TO

COLOR TV PROBLEMS

16 MODERN ELECTRONIC SERVICE DEALER

1 TEST EQUIPMENT TOPICS

This Month!

The Impedance BridgeONE OF THE LEAST USED-

As long as radio and television serv-icemen have been in business they havebeen customers for suppliers of "LittleBlack Boxes". Some of these devicesprovide friendly and comforting results:For instance, connect a flyback to one ofthe more sophisticated items, and almostimmediately it will blink "Good" "Good""Good or "Bad" "Bad" "Bad".

It has been customary to refer to someof the devices, such as the VOM orVTVMs, as the "best known, most used"items in the "Little Black Box" cate-gories.

Now we come to one of the "leastknown. seldom used" items in the radioand television service fields: The Impe-dance Bridge.

WHAT IS IT?

A bridge is a device in which an un-known value can be compared to :I

known value by a "Null" or "SignalBalance" arrangement. In the DC form,the Wheatstone Bridge for instance, thearrangement takes the form of four re-sistance arms, with the unknown becom-ing one of the four.

For AC purposes inductances and/orcapacitances are arranged in a four leg

configuration and an AC signal, fre-quently 1000 cycles per second, is usedto balance the unknown against theknown. In the process of determiningthe inductance or capacitance values,two other AC factors. dissipation I D) orstorage (Q) may he determined.

TYPICAL RANGE OF MEASUREMENTS:

Low priced units may provide:Inductance measurements from 10

microhenrys to 100 henrysCapacitance measurements from 10

mmf. to 100mfd.Resistance measurements from .1 ohm

to 10 megohms.Laboratory and higher priced units

can be found for many special pur-poses. Accuracy and range will he re-lated to cost.

SOME SERVICE APPLICATIONS:

Here are a fe%s that t onie to mind:

An Impedance Bridge can be used to:

1. Detect a single shorted turn in acoil with hundreds of turns.

2. Indicate an oversize, normal, orundersize air gap in a ferrite orlaminated iron core.

3. Compare known and unknown fly-back characteristics.

4. Check peaking coils for correct in-ductance.

5. Determine polarity of windings.

6. Provide accurate ratings of verysmall capacitors.

7. Measure yokes and flybacks for.'match" characteristics.

WHO MANUFACTURES BRIDGES:

General Purpose Impedance Bridgesare listed by Heath and Eico.

Laboratory and special purpose typesare listed by Boonton Radio, ElectroScientific Industries, General Instru-ment. Jame - Millen. and many others.

WHAT ABOUT THE FUTURE?

As servicemen become more con-

cerned with the AC aspects of receivercircuitry, Bridges will become naturalservice partners and will make tremen-dous contributions to more accurate serv-ice analysis and, of course, profitableoperations.

NEXT MONTH: Test Equipment Topicswill present illustrations, data, and highpoints from a review of latest modelColor Bar, and Alignment Generators.

MARCH, 1963 17

How To Talk

ANTENNAS TO YOUR CUSTOMERS

By ROBERT D. RAYNORClearbeam Antenna Corp.

This is the first of a series of articles designed to make it possiblefor you to explain, in simple language,, to your customers basicreception problems and the part Antennas play in their correction.

PART 1The first question most people seem to ask about television

is: "How does the picture get from the station to my setwhen there are no wires connecting them . . . such as inthe telephone?"

If we understand that all the telephone wire does is carryelectrical energy with varying patterns (which the telephoneinterprets and converts into sound). we have gone a longway toward understanding how television signals travel fromone point to another.

Since we are only sending energy. there are other waysof sending it other than by wire. If von place your handin the direct sun you will feel a form of energy being sent(without wires) from the sun. Your hand in a sense is actingas an antenna since it is receiving energy and converting itinto intelligent information. In this case even if you wereblindfolded it would give you a "picture" of whether or notthe sun was shining, and how brightly.

Television uses the same method of sending energy fromone point to another. The TV station acts as the sun andradiates (sends out) energy. The antenna on your roof actsas your hand in the sun . . . that is. it is sensitive to theenergy reaching it. Also, just as the nerve ending, in yourhand sent information to your brain to tell you how hot orcool the sun was, the antenna on your roof sends informa-tion to your TV set which converts it into pictures.

The only important difference between the energy sent outby the sun and that sent out by the TV station is that youcan actually see the sun's enerp in the form of light. Thedifference is that just as the human ear cannot hear allkinds of sound (such as dog whistles I the human eye cannotsee all kinds of light. Infra red light. X -Rays are just twoexamples of kinds of light which the human eye cannot see.TV signals are simply another form of light which the evecannot see . . . but which is present just as much as thesound of a dog whistle is present even if we cannot hear it.

If you will think of a TV station as being a light housesending out a beam of light in all directions and if you willthink of the TV signal as being the light from the lighthouse. it will dear up a great deal of the technical mysteriesof television. Anything which happens to light happens toTV signals . . . for instance TV signals travel in straightlines . .. they cannot bend or go around corners. Like light.the further away you get the dimmer it becomes. TV sig-nals may be reflected as light is in a mirror or it may Incpartially reflected as light is from a white wall. Like theX -Ray form of light TV signals can pass through certainmaterials such as plastic. cloth or wood but are reflected orblocked out by other more dense materials such as sheetmetal. or the earth itself.

It is for this reason that if on live behind a hill . .

that is. if you have a hill liet%em your antenna and theTV station, you will have great difficulty in getting tele-vision reception.

Also, as can he seen in the drawing at house A the cur-vature of the earth's surface can block off signals.

At house B the use of a taller mast for the TV antennaextends the distance at which television can be received.This is why you see such tall TV masts when von drive outinto the country and are further away from the station.

Also. out in the country you tend to see large antennaarrays and combination, of antennas connected together.These are called "stacked- antennas or "two hay" antennasand arc used quite naturally because the signal gets weakertor dimmer I as von get further away from the station.

SUMMARYAt the TV station pictures are converted into patterns of

electrical energy. This energy travels like light from thestation to your antenna. The antenna. which is sensitive tothe energy, sends it down to the TV set which converts thepatterns of energy into pictures.

Fig. =1.Curvature of earth and mountains blocK TV signals,creating need for tall masts in fringe areas and inhilly regions.

IS MODERN ELECTRONIC SERVICE DEALER

r

r ef1 7 II

e

LEADERS IN ITS LINE . .of 1963 hi-fi kits by Paco are the ST-55MX FM stereo multiplex tuner andthe SA -SO integrated stereo preamp-amplificr kits. Each is new from outputcircuitry. to exterior design. to the uniquepackaging sy,-tem which simplifies kitconstruction.

The ST-55MX tuner features duallimiters. a Foster -Seeley discriminatorand a grounded -grid RF stage to provideperformance free from noise and inter-ference. It offers 30db of stereophonicseparation with minimum distortion.ST -5511X circuitry incorporates a full -

wave power supply. an electrostaticallyshielded power transformer and 12tubes I including rectifier). An EM84tuning indicator is used.

The SA -50 is a 50 watt preamp-ampli-fier designed to provide top performanceand maximum flexibility in any stereo-phonic or monophonic system. The SA -

50 front panel includes 14 controls andswitches. among them: two -positionequalization switch; seven position modeselector; tape monitor switch; contours% itch for Fletcher -Munson character-ist : two speaker system selectorswitches for flexible control of remotespeaker systems; six position input se-lector. calibrated balance control; loud -

(lc, 1% dume) control and dual bass andtreble controls. The unit has a frequencyresponse of 30cps to 90kc at ± 1.0db.Harmonic distortion is less than 0.5%at 20 watts per channel output; inter -

modulation distortion is less than 1%at full rated power.

A NEW, POWERFUL,ALL-WEATHERbroadband antenna, the "Color Guard"(Model C-331. which will provide high

A Round -up 01 Products We Feel Will Be 01 Interest AndBenefit To The Electronic Service Dealer In The West

definition color TV on all VHF chan-nels has been introduced by TechnicalAppliance Corporation (TACO).

According to Dan O'Connell. Man-ager of TACO's Consumer Products Di-vision. the new broadband antenna isthe first antenna of its kind directed tothe color field which utilizes designformerly used only for the powerfulreception needs of extreme fringe areas.

The new "Color Guard" antenna hasbeen engineered to deliver outstandingcolor picture clarity, as well as highestquality black and white picture recep-tion and high fidelity sound to all butdeep fringe areas.

"This is an era of large color TV setscontaining very sophisticated circuitry."said Mr. O'Connell. "The 'Color Guard'has been developed to meet the discrimi-nating needs of this color market at apromotional price. -

The antenna provides an average gainof 10.5 db on the high -band channelsand 8.5 db on the low -hand channels.with uniformly flat response.

The "Color Guard" features extrarugged, in -line construction, high me-chanical strength, balance and stability.These characteristics minimize ice -loadand wind resistance problems.

Additional element support is pro-vided by folded dipole construction, withextra heavy phasing brace. The antennaarray is manufactured from a chromealuminum alloy and coated with TACO'snew corrosion -proof. gold conductivecoating.

The "Color Guard" is listed for $17.95.

THIS COMPLETE KIT . . .of two-part TV & Radio Tuning Knobs.stock no. 1179. has been announced byColman Electronic Products. Containingparts for over 2700 different combina-tions. the kit is a simple, inexpensiveway for a serviceman to stock replace.ment tuning knobs in his service truckor shop.

Color -matched to the popular ColmanTwo -Part Universal Knobs, the newheads will interchange with all stemspresently in use.

"LITTLE JOE" WYR/STABr MACDONALD & CO.

THE PRIMARY USE FOR . . .

the new Macdonald "Little Joe" Wyr/-Sta is for holding and retaining all kindsof Conductor Wires. Groups of Con-ductors may be pre -positioned thus mini-mizing "rats nests" within a chassis orconsole, and also assist in the assemblyof final operations. Conductor Wires maybe quickly wound into Wyr/Sta or in-serted and withdrawn by "pulling out'or "unwinding." This new product is

now being manufactured and distrib-uted by Macdonald .& Co.. Glendale 6,California.

Additional Advantages Offered: Wyr/-Sta may be used as a Tool Holder: ForScrewdrivers, Pliers, Spin-Tites orSoldering Irons. Wyr/Sta Safety Fea-tures include Plastic Pads (or Protectors)to assure: 1-Holding Capacity. 2-Surface Protectors. 3-No deposit orresidue. 4-No "pick-up" of paint, etc.

Each Wyr/Sta has a Color Coded Tipand Wire Connector Holder, with a

nickel plated middle body. Such finishmeans No Flaking. Attractiveness, Clean.Readily seen when in use. The smoothsurface will not deform, mark or dis-turb the insulation. Wyr/Sta requires notools to use. Strong, sure -grip AlligatorType Clips insure against fall -off. Theycan be clamped or positioned with easeand speed by women operators. Wyr/-Sta is an excellent product for Group-ing. Positioning or Routing of Con-nect( ts.

(Continued Next Page)

MARCH, 1963 19

A NEWLY DESIGNEDcompact matching transformer to facili-tate attaching 75 -ohm coaxial cable to300 -ohm TV set terminals is now beingproduced by the Winegard Company,Burlington. Iowa.

Only 2 inches long, the balun-typetransformer comes in gold anodizedaluminum housing with polystyrene capand rubber cable hoot. 300 -ohm ter-minal wires are pre -attached to thetransformer circuit board. A unique fea-ture is that no special tools are neededfor connecting the 75 -ohm cable to thetransformer.

A vinyl cable clamp with screw is in-cluded for securing the cable to the backof the TV set. The transformer is for useon 50-250 me. VSWR is 11:1. Insertionloss is 1/4 db.

1 nit with instructions packaged onillVgard "skin-pak" hoard. Model

75-300 ohm matching transformer,$3.00 list.

PERFECTCOMPONENTS INC . . .

The manufacturer of a line of preci-sion gears, magnetic clutches, electronichardware, speed reducers and differen-tials has recently added to its stock an/array of EXTRA flexible Bellows

couplings unparalleled in the electro-mechanical components industry. Eigh-teen different sizes of flexible couplingsare available immediately from Com-ponent stock.

EXTRA flexible couplings are special-ly suitable for application in which nobacklash can be tolerated. Torque speci-fications range from 1 in. oz. to 180 in.oz.

The Bellows element of the couplinc, isfabricated from spring temper nickeland the ends are #303 stainless steel.

Price-$14.99 to -16.99.

TIEVITvoust

TV. RADIOTUBIS

EASY TOOPERATE

ALL Eti.,40NIc

A NEW SELF-SERVICE .. .men to promote in -shop do-it-yourselfTub Tester designed to enable service -tube testing and also use on service callshas been announced by Seco Electronics,5015 Penn Avenue South. Minneapolis19, Minnesota.

Called Seco-ETA Model 88SS thisnew instrument is said to be a completeTV Tube Tester and will test all newtubes including 9 -pin novars. 12 -pincompactrons, 10 -in tubes and navistorsplus all previous popular TV tube typesand all modern radio tubes and hybrids.

The ETA Model 88SS, which standsfor Electronic Tube Analyzer. is compactin size-9x101/,x51/0 inches-enablingthe serviceman to simply lift the instru-ment from counter display and take withhim on service calls.

Incorporated in the tester is the pat-ented Seco Grid Circuit Tester plus areliable Cathode Emission test using alow impedance. low test voltage circuitand a vacuum tube meter. Unit alsochecks filament continuity and providesan open element test.

Specifications include: 12AU7 twostage DC amplifier, Selenium rectifierpower supply, single 5 m.a. meter whichindicates results for both grid circuitand tube merit tests, high quality rotaryand lever switches for pin isolation andtransposition.

The Seco ETA Model 88SS costs$79.50 complete with self-service displayand Seco warranty that unconditionallyguarantees that adaptor kits or set-updata will be furnished without cost tokeep your tester current for one yearfrom date of purchase, the company said.

ALL CITROEN . . .

Electronics Models 550 and 660 porta-ble tape recorders are now beingequipped with a 71/, IPS kit for profes-sional applications.

Addition of the kit gives the CEClightweight models I Model 550 weighsjust five pound-. Model 660. five andone-half pounds1 three -speed perform-ance -17/8 and I IPS in addition to71/2 IPS.

There is no charge for the 71/2 IPSkit. Model 550 CEC tape recorder stillretails for $129.50. Model 660. a two -speaker portable. for $149.50.

Literature on these CEC portable taperecorders and the new 71/, IPS kit is

available now from Citroen ElectronicsCorporation. 729 N. Highland Avenue,Los Angeles 38. California.

A NEW MINIATUREmicrophone with the wide range re-

sponse. high output and ruggedness ofmicrophones hundreds of times its size,has been announced by Shure Brothers,Inc., Evanston. Ill.

Called the CA5A. the new unit is just1" (25.4 mm) long x .25W' (6.35 mm)wide x .100" (2.54 mml thick. Itweighs only three -fourths of a gram.

The CA5A's size makes it ideal foruse in hearing aids, small head -wornmicrophones and hand-held transmitters."hidden" microphone installations,pocket t ape recorders and dictatingmachines. extremely thin lavalier, flooror desk stand microphones and in manyother applications of electronic minia-turization.

20 MODERN ELECTRONIC SERVICE DEALER

CHEMTRONICS, INC.originators of many fine chemical aidsto Industry. is currently marketing thelatest of their achievements. CONTACT-KLEEN. It utilizes the latest advance-ments in chemical techniques to providea positive cleaning and restoration actionto relays. actuators. controls. switches,prongs. etc.. in use throughout industry.

CONTACT-104:EN is ideally suited tothe Electronics Industry because of itsnon -corrosive action and leaves no filmor residue to build up resistive or ca-pacitive harriers. CONTACT-KLEEN issupplied in an eight -ounce pressurizedspray can and is sold complete with astainless steel extension tube to provideeasy access to tight. hard -to -get -at equip-ment.

Complete with spray extension tube$1.49.

THE TERADOCORPORATIONSt. Paul 8, Minnesota. has just an-nounced two new Voltage Adjusters. ThePlanet. #50-203 handles electrical equip-ment up to 300 watts. The Polaris.#50-20.4 has a capacity to 500 watts.Both of these Voltage Adjusters changeabnormally high or low voltage to nor-mal. It is pointed out that television,hi-fi and all other electrical equipmentoperates best at 115 oohs for which theywere designed.

These Adjusters are especially usefulfor television in low voltage areas torestore the full height and width of thepicture. Also. they stabilize picture syncand increase sensiti% 111 Stereo andequipment is brought to full fidelity.Terado Voltage Adjusters are particu-larly useful in increasing speed of smallmotorized equipment such as high speed

grinders. routers. engraving and panto-graph equipment. Production for suchoperations can be increased as much as75%.

For more information. write to TeradoCorporation. St. Paul 8. Minnesota, orcontact your electronic jobber.

AMPERE\ ELECTRONICCORP. . . .

announces two nee, frame grid tubes forVHF and CHF television sets. the

6HA5 FC900 la triode amplifier andthe 6C,J7/ECF801 oscillator -mixer. These

two tubes because of their extraordinaryhigh gain, will enable TV set manufac-turers to lower prices by eliminatinghitherto necessary circuitry.

Used as a package the two tubes givegain in excess of 200. When coupledwith the widely used 6EH7 and 6EJ7in a 2 -stage IF system, a TV set sensi-tivity of less than 5 microvolts for 1 voltat the detector can be achieved. This ismore than sufficient gain for a TV set,and there being no further need for the3rd IF stage. it can be eliminated withthe cost saving immediately passed onto the manufacturer and consumer.

PICTURE

TUBE

SAVINGS!

0AND

BLACK & WHITE TOP QUALITY ALL SIZES

ONE YEAR GUARANTEE

WHOLESALE ONLY DIRECT FACTORY TO YOU

Distributors of:

Westinghouse Receiving Tubes-Rogers Transformers & Yolks-Test Equipment-Condensers-Resistors-Antennas-Everythingfor the TV Replacement Market.

P C 0 [Wreak R T SLOS ANGELES

3660 W. Pico Blvd.RE 1-2177

STORES IN

LYNWOOD10906 AtlanticNE 9-6248

EAST LOS ANGELES5916 Whittier Blvd.

PA 1-2907

MARCH, 1963 21

WEWIPETS ANNOUNCES NEW

DIRECTORS FOR 1964The following members of the West Coast Electronic Industry have accepted an

appointment as a member of the 10 -man

Three (3) Manufacturers:Herb Balderson, President - Califor-nia Chassis Company. (NE 6-7777).

Charlie Brokaw, District ManagerWestern Region, Distributor ProductsSales-Electron Tube Div., Radio Cor-poration of America. (RA 3-8361).

Bill Woodbury, Western RegionalManager-Sprague Products Co. (870-7531).

Three (3) Association of ElectronicDistributors (AED) members:

Norb Dean, President-Dean's Elec-tronics (NE 6-9314).

Ike Krone, President - FederatedPurchaser of California. (BR 2-8771).

Cap Kierulff, President-Kierulff El-ectronics, Inc. (RI 8-24/4).

Two (2) Electronic RepresentativeAssociation AERAQ memberss

Bert Moore, Chairman DistributorDiv. Los Angeles Chapter ERA-Bassett& Moore. (TR 7-7129).

Ellard Strassner, Past -Chairman Dis-tributor Div., Los Angeles ChapterERA-Ellard E. Strassner Company.

1961 PETShow Board of Directors:

(HO 2-0916).One (1) representative of the In-

dustrial Purchasing Community:John Zetterstrom, Executive Asst. to

Vice President Administration and Di-rector Material Components Division-Hughes Aircraft Company. (SP 6-1515,Ext. 6254).

One (1) representative of the DealerPurchasing Community:

Don Martin, Publisher-Modern El-ectronic Service Dealer. (755-5261).

Official Publication of the CSEA(California State Electronics Assn.).

The 1961. PETShow Board of Direc-tors will meet with out -going officers.directors and committees within 30 d,i \of the 1963 PETShow to elect diet1964 officers and committees frontamong the more than 200 manufac-turers, representatives and distributor,who have supported the 1963 events.and make necessary determinations withregard to the dates and location of their4th annual PETShow.

MOVED TO LARGERLOCATION

TV TUNERSRebuilt & Exchanged $9.95

Including all parts except tubesLow cost replacement tuners

available for most tuners beyondpractical repair.

FAST-GUARANTEEDComplete Crystal Alignment

10 yr. tuner experience(6 yrs. in factory)

VALLEY TV TUNER SERVICE5641 Cahuenga Blvd.

North Holywood, Calif.Phone: POplar 9.4730

WESTERN T. V.

TUNERSVHF Rebuilt $9.95UHF Combo $17.50

Broken or mutilated MAJORparts are extra at net price.Most tuners shipped same day4130 El Cajon Blvd.

San Diego 5, Calif.-AT 4-27331140 N. Vermont Ave.

Los Angeles-NO 2-1397

POSITIONS OFFERED

T.V.

SERVICEMENHoffman, one of So. Cali-fornia's largest TV servicedivisions since 1948 needsexperienced T.V. service-men; also one opening foran experienecd transistorradio repairman.V PERMANENT POSITIONS

U.S. Citizenship RequiredExcellent Employee Benefits

Write Box 15H1014041 Marlton Ave.

Los Angeles 8, Calif.

T.V. SERVICEBUSINESS FOR SALE

FULLY EQUIPPEDWELL ESTABLISHED

BUSINESS IN INGLEWOODTRUCK INCLUDED

MAKE OFFERInglewood TV512 S. La Brea

OR 8-3859

Tips for Better Business

COMMISSIONCOMPENSATIONS

Compensating a serviceman foradditional work completed, cer-tainly plants a nice picture in themind of employees.

This method can make a sales-man of each serviceman, and cre-ate an atmosphere of a hard-work-ing service dealership, a charac-teristic admired by customers.This will encourage better rela-tions betwen customer and yourorganization.

Of course this seems like autopian technique, and it is, be-cause with every good thing thereare little bad points that clutterits effectievness.

If this method is put into usewatch out for sloppy wark, result.ing in the serviceman trying tolimit his time so as to enable himto make more calls than time ac-tually allows. Make sure that thereplacement of un-necessary part,is being avoided, and that yourservicemen are allowing curtiou,attention to each and every cus-tomer.

POSITIONS OFFERED BUSINESS OPPORTUNITIES

ELECTRONICS SALES & Service Busi-ness desiring to sell for net inventory. . We have other interests. Goodlocation, excellent recreational andeducational surrounds. Ideal for ski,fishing or hunting enthusiasts. Blueskies, clear air! Immediate answer re.quested. ESCO, Box 588, Mt. Shasta,Calif.

TV & RADIOREPAIR

SALES AND SERVICEShop for Sale

Estab. 14 yearsGood Lease

Write for appointment1821 Broadway

Santa Monica, Calif.

USED-TV'SAS IS

WHOLESALE TODEALERS

100's OF SETS TO CHOOSEM

LOW SHIPPING COSTSANYWHERE

TV BROKERS4920 W. PICO, LA, 19, Calif.

WE 1-6622

HOW TO USE WANT AD PAGETO PLACE AN AD

BY PHONE: in Los Angeles call AXminster 2.0287. (This is the numberof the Classified Dept. only) ask for GRAYCE KENNEDY.IN PERSON: Come to 4041 Marlton Ave. in the Crenshaw Shopping Center,next to Barkers. (This Address is for the Class'Rad Rapt. only.)BY MAIL: Send your ad to QUINN'S Classified Dept., 4041 MorIton Ave.,Los Angeles 8, Calif.

RATES95c PER LINE, one time. MINIMUM' 5 lines.BOX NO.a Add 500 service charge, and allow 2 lines for reply address.RE -RUNS: 2nd and 3rd times, less 10% each, 4th and thereafter less15% each. Same copy.HEADLINES, ETC.: Large headlines, box borders and 2 -col. ads availableat modest charge."POSITION WANTED": Less 15%, payable in advance.

22 MODERN ELECTRONIC SERVICE DEALER

dt

What's our BIG difference in 1963?Regarding our quality, no one builds a better picture tube ... the brand names are the same ... stillmanufactured in the same facilities, the largest and most automated west of Chicago... tube reliabil-ity and efficiency is checked by the industry's most skilled engineering staff ... and still manufacturingtubes for several of the nation's leading T. V. set manufacturers.

OUR BIG DIFFERENCE IS: (1) A new, sound corporate financial structure. (2) New managementand engineering talent have been carefully integrated with energies and abilities of proven personnel,giving the company the strongest executive and technical team in its history. (3) Through acquisitionand expansion, new facilities have been added enabling us to offer research and development ofcathode ray tubes for numerous industrial, military and commercial applications ... and incidentally,we are mighty pleased with our new corporate name...

AMERICAN VIDEO CORP.18601 S. SANTA FE AVENUE COMPTON, CALIFORNIA LMon.lochgets of Dumont A.B.D. and Colvideo Television Picture Tubes Distributor Marketing of Dumont A.B.D. Receiving Tube

MARCH, 1963

Winegard's 2-Nuvisfor Single TransisColortron Antenna Amplifiers Red Head AnILAmplifier

Take your choice of Winegard's 2-nuvistor Colortron or single -

transistor Red Head antenna amplifiers - both great - both trouble -free!

Both work with any TV or FM antenna. Here's the story!

COLORTRON ANTENNA AMPLIFIER . ONLY $39.95 EXCELLENT FOR COLOR WON'T OVERLOAD TAKESUP TO 400,000 MICROVOLTS OF SIGNAL

FINEST ANTENNA AMPLIFIER MADE. . . Because the COLORTRON amplifiertakes up to 400,000 microvolts of signal input,strong local signals won't overload and causeinterference on distant fringe stations. It takes20 times more signal input than any transistorantenna amplifier and without compromisingits ultra low noise ability to pull weak signalsout of the snow.

A special "lifesaver" circuit gives the 2 nuvis-tors an expected life of 5 to 8 years. It's theonly amplifier that's completely weather-proof-nothing exposed, even terminals are pro-tected. Install it and forget it! Fits any TV orFM antenna.

Colortron Amplifiers are Available in 2 Models for TV

FOR TV- Model AP-200N-twin nuvistor, takesup to 400,000 microvolts, input 300 ohm,output 300 ohm, $39.95 list.

FOR TV-Model AP -275, twin nuvistor, takesup to 400,000 microvolts, input 300 ohm,output 75 ohm, $44.95 list.

RED HEAD TRANSISTOR MODEL . .. ONLY $29.95FOR COLOR AND BLACK & WHITE MOST RELIABLETRANSISTOR ANTENNA AMPLIFIER EVER MADE.

With the Red Head, you won't have transistor"pop -out" because of its special advancedcircuit that protects against lightning flashes,precipitation static and power line surges.Has high pass interference filter, 2 -set coupler,fully AC-no polarity problems. Tremendous-ly effective in remote areas where all signalsare less than 20,000 microvolts. Uses latestlow noise MADT transistor. Bright red am-plifier housing gives lasting product identifi-cation. The Red Head supersedes Winegard'sfamous MA -300 amplifier.

For TV or FM-Model No. RD -300, singletransistor, takes up to 20,000 microvolts, 300ohm input and output, $29.95 list.

Stereotron Amplifiers are Available in 2 Models for FM

FOR FM-Model AP -320, twin nuvistor, takesup to 200,000 microvolts, input 300 ohm,output 300 ohm, $39.95 list.

FOR FM-Model AP -375, twin nuvistor, takesup to 200,000 microvolts, input 300 ohm,output 75 ohm, $44.95 list.

Write for technical data or ask your Winegard distributor.

There's 2 Winegara Eloality Antenna

fc Every Reception Need

Gel AN EXTRA BONUS OF QUALITY AND VALUE FROM WINEGARD

WINEGARD COMPA

ANTENNA SYSTEMS3024-3 KIRKWOOD BLVD. BURLINGTON, IOWA

Participating Distributors:

/ -4 ", r

t (LORI :IN ANTENNA

Mod:1 C.e4 Odd Anodized $64.95

:OLORTRON ANTENNO

NoSel C43 Otid Anodized $51.90

tOLORNOPI ANTENNA

Motel C,2 Gold Arridued $34.95

COLORTRON ANTENNA

Moiel C-i Gold An3rized $24.95

RCA VICTORDISTRIBUTING CORP.6051 Telegraph Rd.. Los Angeles 22

RA 3-6561

HURLEYELECTRONICS

1429 So. Sycamore Ave., Santa AnaKI 3.9236

DUNLAYELECTRONICS

1800 18th St., SacramentoGL 2-3171

RADIO PARTSCOMPANY

2C63 India Stree', San Die232.8951