After more than a month of video-making abstinence I finally managed to make another one.
It’s about the classic Heathkit IG-102 signal generator. 2 Tubes, the 12AT7 and the 6AN8 make up 4 oscillators (3x RF, 1x internal modulation). Some little hack at the end…
if you need some manuals I probably can help you. I can’t put up any manuals ’cause Heathkit was a little cranky about that sort of thing – so until the situation is clear, just ask.