'49 Admiral audio problem

[kbmuri]

I'll try reducing the generator's amplitude Friday.

One thing we know, though, is that the audio from the generator doesn't get through at the desired 65.75 MHz, regardless of its amplitude. Finally, this agrees with the fact that there's no TV-Signal audio either (assuming it's at 65.75 MHz too). Something I can grasp for a change.

Assuming the generator is AM only (I believe my 'scope bears this out), then the "lull" at 63.65 MHz is probably the dead-center point you described in post#6? If so, then is the TV mistakenly looking at 63.65 MHz for audio?

Assuming the zero-beat of the video is centered in the "black-screen" sweep, then the video and audio are only 2.85MHz apart. More likely, if the zero-beat is in fact at 61.25, then the spread is only 2.4 MHz. Not 4.5MHz.

If the TV is looking at 63.65MHz for audio, what practical steps do I take to move that up to 65.75?

I know, lotta "if"s and "assuming"s. Will verify stuff Friday. Just planning ahead.

Thanks all, for all the help to date.