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Zenith 12-S-265 (chassis 1204)
#26

Thanks Russ, due to their smaller size I pretty much use 1 & 2 watt resistors for most applications.

The tuning was very stiff so I needed to access the tuning gears, so I carefully removed the shutter dial assembly. I think the stiffness was a combination of dried out grease and a clock spring that was too tight.

After removing the gears and clock spring I realized I needed to remove the tuning cap. I didn't really want to but it was so filthy there was no way to properly clean it without removing it. After breaking out the Weller soldering gun I finally got it off the chassis and both the tuning cap and the chassis under was indeed filthy. I spent a lot of time spraying the tuning cap with fast drying contact along with an acid brush. I'll let it dry before I take it out to the garage and blow it out with my compressor making sure there are no shorts and lightly lubing it.

With the tuning cap off I spent some more time cleaning the chassis. Cotton balls, Go-Jo, blue paper shop towels and Dollar Store glass cleaner seem to slowly cut through the thick layers of grime.

John KK4ZLF
Lexington, KY
"illegitimis non carborundum"


Messages In This Thread
Zenith 12-S-265 (chassis 1204) - by Eliot Ness - 05-08-2020, 06:51 PM
RE: Zenith 12-S-265 (chassis 1204) - by morzh - 05-08-2020, 08:22 PM
RE: Zenith 12-S-265 (chassis 1204) - by morzh - 05-09-2020, 01:45 PM
RE: Zenith 12-S-265 (chassis 1204) - by morzh - 05-09-2020, 03:01 PM
RE: Zenith 12-S-265 (chassis 1204) - by morzh - 05-09-2020, 04:52 PM
RE: Zenith 12-S-265 (chassis 1204) - by KCMike - 05-11-2020, 05:28 PM
RE: Zenith 12-S-265 (chassis 1204) - by rfeenstra - 05-22-2020, 04:09 PM
RE: Zenith 12-S-265 (chassis 1204) - by morzh - 05-23-2020, 11:22 AM
RE: Zenith 12-S-265 (chassis 1204) - by morzh - 05-23-2020, 12:06 PM
RE: Zenith 12-S-265 (chassis 1204) - by rfeenstra - 05-23-2020, 01:15 PM
RE: Zenith 12-S-265 (chassis 1204) - by Eliot Ness - 06-12-2020, 06:05 PM
RE: Zenith 12-S-265 (chassis 1204) - by morzh - 06-12-2020, 06:57 PM



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