Early Electronic Television Television Training Institute 1943 ReceiverSchematic of a TV receiver used in a TV course at the Television Training Institute in Philadelphia. It is a two channel set, and uses a 5AP4 or 5BP4 CRT. If anyone has information on this school, please contact us. The circuit is very similar to the 1947 Telekit model 7. (click on pictures for high resolution images) Invisible text to format smartphones. xxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |