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Old 09-24-2017, 06:13 PM
LADR's Avatar
LADR LADR is offline
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Join Date: Mar 2017
Location: Birmingham, AL
Posts: 119
zenith 25MC36 fine tuning problem

the fine tuning in my zenith has randomly stopped working so since that happened, I can't tune in the color. anybody got any ideas??
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Old 09-24-2017, 06:48 PM
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Findm-Keepm Findm-Keepm is offline
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Bad wishbone? It's a "yoke" that slides a gear into the fine tuning slug in the tuner. Zenith was famous for bad wishbones. I may have one. The gear teeth get eaten, but some might still mesh.

34-?? WAS the part number, but Zenith went and made it 834- or 800 - something, like the kits. We ordered them in 10's from Bluefield Distributing in the 80s. Our tube caddy had a couple for house calls.

Zeno? - Any recall of the part number??? He's know for sure.
USN RET (Avionics / Cal)
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Old 09-24-2017, 07:10 PM
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TUD1 TUD1 is offline
Join Date: Jan 2014
Location: Birmingham, AL
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Replace the belt.
"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan

Last edited by TUD1; 10-20-2017 at 11:01 AM.
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Old 09-25-2017, 08:34 AM
zeno zeno is offline
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Join Date: Mar 2013
Location: New Hampshire
Posts: 3,283
Yes some of them used a small thick belt. There was
also a wish bone & a diaper pin style.
Cant remember the part numbers but we used to go
through lots of 834-?? on the non SGVG sets & other brands.
That was all plastic.
Best to drop the tuner & take a pix of the FT assy.

73 Zeno
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