10-15-2017, 05:10 PM
This radio had major mouse damage that had to be corrected. After removing the nest I discovered that all of the wires connecting the push button tuning coils were eaten. This was a bit surprising since the wires were woven un-insulated steel. All of the other insulated wires were damaged but not by the mice. It an attempt to figure out why my oscillator wasn't working I carefully inspected with a magnifying glass every wire and wiring connection that I replaced while double checking the schematic to make sure i didn't make a mistake. When i did this I found a tiny piece of the braided wire connecting to trimmer cap 17. It turns out that this entire wire was eaten and originally it connected to terminal 6 of the oscillator coil at a location that's hidden on the backside of the oscillator coil. After replacing this wire the radio works fine. What's the rational behind using braided un-insulated wire? I'll replace these with silicone covered stranded wire. Now that I know I have a keeper I'll finish replacing the rest of the original rubber wires. I'll post pics when I'm finished.
Keith
Keith