05-10-2018, 10:23 PM
Since I was feeling a bit bummed about the Zenith and it was a nice evening, I dragged the Silvertone out onto the little building porch so I could tinker on it. It kept getting either a back-feed over overload and I found out the issue really quick. The stupid band switch again! Pressing down on the knob with my thumb would straighten the stereo out really quick. So, lacking contact cleaner, I decided to try WD-40 on this sucker! Actually, I found two of the bottom contacts on the switch had green spots on the and the WD-40 did seem to clean those up. Unfortunately, the upper part of the band switch is in a sort of semi-sealed unit that is hard to get any cleaner into. It's still far better than it was though. Though the transformer is kinda small, it really doesn't get very warm when being played. It does warm up of course, but it seems to be well within the limits for its size and what it is trying to do. So.. here are some pictures I took while I had it out. Once I got the back replaced on it, I turned the stereo around and let it blast out into the parking lot for a while while I was outside. Other than the couple usual fusses with the band switch cutting out a speaker, it played even better this time around. Seems the U-shaped chassis is basically modules bolted together with a power supply board hanging off the bottom.
No matter where you go, there you are.