04-03-2017, 08:45 PM
Ok, I finally did the tuner sub-chassis today. It was difficult, but not as bad as I expected.
I really HATE leaving old components in place, but one of the caps was really buried and I couldn't even SEE the ground lead, let alone get cutters or a soldering iron on it. So after measuring it for my documentation I clipped the other lead completely off and stuffed it down into the chassis as far as I could and it'll have to stay there.
Now I need to do some cleanup on the top side of the tuner sub-chassis, finish attaching wires for the power transformer, wire in the output transformer and the speaker connector, then figure out what I'm going to do about the power transformer. Plus I need to order a few parts. I had some brain fade and ordered a 0.47uF electrolytic instead of a 4.7uF, plus there are a couple of mica caps that are missing from the circuit. I'm pretty sure I removed one of them when I worked on this set many years ago and never replaced. The others appear to have never been in the circuit so don't know if I'll put them in.
Rich
I really HATE leaving old components in place, but one of the caps was really buried and I couldn't even SEE the ground lead, let alone get cutters or a soldering iron on it. So after measuring it for my documentation I clipped the other lead completely off and stuffed it down into the chassis as far as I could and it'll have to stay there.
Now I need to do some cleanup on the top side of the tuner sub-chassis, finish attaching wires for the power transformer, wire in the output transformer and the speaker connector, then figure out what I'm going to do about the power transformer. Plus I need to order a few parts. I had some brain fade and ordered a 0.47uF electrolytic instead of a 4.7uF, plus there are a couple of mica caps that are missing from the circuit. I'm pretty sure I removed one of them when I worked on this set many years ago and never replaced. The others appear to have never been in the circuit so don't know if I'll put them in.
Rich
