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Old 10-22-2006, 10:20 PM
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wcarroll wcarroll is offline
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Join Date: Nov 2004
Location: Baton Rouge, LA
Posts: 75
Finished up with the electrolytic caps tonight. In the picture below you can see that I ended up placing the two 160uf's below the tuner. Took out the horizontal output tube and powered the chassis up with my variac. The voltages all look excellent... Slightly higher than shown on the SAMS schematic, but almost exactly as shown on the RCA schematic.

Hopefully the rearranging I did will not cause any 60Hz hum. I really wanted to maintain an original look from above the chassis. Restuffing the multi-section caps was an option, but there's no way I could have fit all four replacement caps in the original four-section cans. Could have mounted these above chassis on a PC board, but then the original look would be gone.

So, in total I changed 13 electrolytics and two black beauties. Cleaned up the various pots, controls, and the tuner with some deoxit. Some of the wiring had a very nasty, sticky film on the insulation. Used some 3M adheisive remover to clean it up. I suppose this film was due to some sort of chemical breakdown of the insulation?

I'll slide the chassis back into the cabinet and hope for the best!
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