div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader042vdocumentsnetreader042viewer20220214205ab944667f8b9ab62f8da50chtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: BT-50 STD Spec · PDF file · 2014-11-18Title: BT-50 STD Spec Created Date: 11182014 10:50:33 AM src=https:reader042vdocumentsnetreader042viewer20220214205ab944667f8b9ab62f8da50chtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdiv