Admiral combo - need some help!

[Don Lindsly]

What are you using to look at the outputs?

Can you inject a 26 meg, AM modulated signal into pin 1 of 6AU6 4th VIF and see something at Photofact test point marked diamond A with a TV grade scope?

All the points you've noted are pretty low impedence and no gain so I would not expect to see much without a good scope. The trouble may be elsewhere.

Measure the AGC at the first and second VIFs. Too much AGC voltage will cut off the IF strip.

Don

[wa2ise]

Be aware that video IF frequencies they used back then were from about 20 to 25MHz. Your generator is probably expecting an IF strip of 41 to 46MHz, which TVs newer than 1955 or so all use.