Zenith 19L25 Chassis Restoration - Advice?

[RitchieMars]

Here's something I was wondering about ever since I recapped my set...



To mount these two filter capacitors I used the lugs of two of the vertical output tube's unused pin sockets. It was convenient this way because I could still arrange that 470 ohm resistor between them and send them both to a common ground, which is also being shared with a 47uf from the audio output tube. The big 80uF filters from the low voltage rectifier, and the 30uF filters pin 8 of the audio-out. I just thought I'd mention this in case there's a chance that there might be a problem with this arrangement. It concerned me that there might be something about the close proximity of these unrelated tubes/circuits that could cause any of the problems I've had.

None of the capacitors I replaced are of the wrong values. A couple of the 40uF have been replaced with 47uF, which should be fine. If I'm reading this right, however, this .002 should be a .001?



Oh, unless this was the .001 I was looking for...?



There's three red "domino" caps in this set. Never dealt with them before.

Anyways, I was able to watch some tv on my set last night and today with some buzz here and there. If I played old movies from the DVD player, it worked fine. But if I put in something more modern, there were sudden scenes of bright to dark and everything got buzzy. I just pulled the chassis back out again and I found a 100k resistor between the contrast control and the video amp tube that was reading about 40% out of spec, so I replaced that. I'll let you guys know if I find anything else.

Oh, and I'm not sure about the DC restore circuit. I can scan some of the schematics if it would be of any help.