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41-250 restoration
#10

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


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Messages In This Thread
41-250 restoration - by keith49vj3 - 10-12-2017, 08:19 PM
RE: 41-250 restoration - by morzh - 10-12-2017, 08:43 PM
RE: 41-250 restoration - by keith49vj3 - 10-13-2017, 06:49 PM
RE: 41-250 restoration - by Radioroslyn - 10-13-2017, 07:40 PM
RE: 41-250 restoration - by keith49vj3 - 10-14-2017, 01:00 PM
RE: 41-250 restoration - by David - 10-14-2017, 01:28 PM
RE: 41-250 restoration - by Radioroslyn - 10-14-2017, 03:16 PM
RE: 41-250 restoration - by keith49vj3 - 10-14-2017, 04:04 PM
RE: 41-250 restoration - by Radioroslyn - 10-14-2017, 08:45 PM
RE: 41-250 restoration - by keith49vj3 - 10-15-2017, 05:10 PM
RE: 41-250 restoration - by keith49vj3 - 11-03-2017, 09:32 AM
RE: 41-250 restoration - by keith49vj3 - 11-03-2017, 09:34 AM
RE: 41-250 restoration - by morzh - 11-03-2017, 10:09 AM
RE: 41-250 restoration - by klondike98 - 11-03-2017, 12:11 PM
RE: 41-250 restoration - by KCMike - 11-03-2017, 01:08 PM



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