Injecting video in DuMont RA-102?

[vts1134]

Originally Posted by Phil Nelson

Thanks, I tried using my 1077B analyst (see first post) without noticeably better results.

Regards,

Phil Nelson

It's really odd that the 1077 isn't giving you results when you switch the polarity of the video output to positive. Did you try going "up the river" with the 1077 and injecting video on the output of the video amplifier with the gain cranked and the video negative on the 1077?