Back to the VT-71H

[Chris K]

Originally Posted by Yamamaya42

If you ever get back into working on the set, you always have the option of trying to direct feed video into the grid of the 6AU6, far side of point D on the SAMS, making very sure your video source is protected and isolated, ( TV on isolation transformer, video coupled via capacitor), according to the service manual, signal level out of video detector is 1.8v PtP, standard composite video level should be close enough to this to see SOMETHING W/O any amplification.

Thank you so much...yes I will try that. At the least, it will give me a reference as to what can be ruled out. Also, it will be so wonderful to see an actual picture on this!!! A few questions...what value capacitor...should the ground for the composite input be to the chassis or B- and, I have the variac set to 117 volts plugged into the isolation transformer so the setup is IT-Variac-Television. Is that OK? I know it makes sense to me but I trip over so much stuff in this hobby.