Rca 9-t-79

[miniman82]

Decided to stuff the parts back in the cabinet, since I'm more or less done with the recapping. There's still a vert lin issue I haven't sorted out yet, I think the resistors in the vert output cathode circuit are douched up or something. When I first got everything installed, vert height was way too short. Turned out to be a resistor feeding the oscillator from B+ that had drifted 120k too high. No biggie, replaced the resistor now there's plenty of height. The slight tearing at the top turned out to be a sync issue, because I didn't have any .47uf caps in the inventory. One is at the sync amp cathode, the other goes to the sync sep. Gonna be real nice once finished, I really like this set.

[miniman82]

Tried hooking it up to the cable box, and hmmm....no audio.

Speaker wasn't blown and the output tranformer seems fine, so the circuit must not be getting powered. Sure enough, 5 minutes of poking around revealed that a 470-ohm power resistor feeding the audio output tranformer had opened up. I don't have a replacement in this value, so I'll have to order one or something. I'm sure that once it's replaced, audio will come back to life.

[miniman82]

Replaced 4 last caps, 2 in the sync circuit, 2 connected to the vertical deflection coils. Lin is just about perfect now, but horizontal seems a bit wavy. I think one or more of the 'lytics may be buying the farm, so I guess I'll have to restuff them before calling this one done. Pretty nice pitcure so far though: "I've got a golden ticket!"