Motorola 19K1 restoration

[bandersen]

I've finally got some signs of life out of this beast. I had hooked up one end of this coupling capacitor wrong. That was preventing the final video amp stage, sync circuits and audio amp from getting a signal.


Here's the output from the 6AS5 cathode follower final video amp stage.


Output from 6V6 audio amp.


The horizontal drive signal at the 6CD6G HOT looks OK. Still no picture though and the HV is a bit low. I'm going to check the damper tube, flyback and doorknob capacitor.


The vertical oscilliator is running at 84 Hz and the amplitude is half of what it should be. I need to so some more checking there too.