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I believe the set is a '67 model. I got around to cleaning the controls and have a better, more stable picture now, got the color killer pot cleaned so it seems to stay in color now, I found a 10 uf 350 volt 'lytic cap under the color demod board and replaced it. Purity set up, static convergence is much better now, but the dynamic leaves a bit to be desired. I can't find a schematic online so I might hit up my local library to see if they have any Sam's books there.
The sound is a bit scratchy, that volume knob pot is hard to get to. All the sound circuits on this appear to be solid state and it looks like the amp part of this beast has a separate power supply (also solid state)
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