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Old 10-06-2016, 03:16 PM
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etype2 etype2 is offline
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Spare fine tuning assembly anyone?

I'm currently restoring my RCA 21CT55. The fine tuning assembly is broken. See photo below.

Does anyone have a spare that I could purchase? I'm thinking the same assembly may be on the Director CT4.

Any thoughts on a fix or to replace it? 3-D printer? Thanks in advance for suggestions or help.

http://www.visions4.net/journal/wp-c...s/IMG_0501.jpg
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Old 10-06-2016, 04:14 PM
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The 21CT55 is really closer to a CT-100 than a CTC-4. The 55 was a 100 with circuit mods to drive a 21" electromagnetically converged CRT, and a different cabinet. The 4 had a completely different 'simplified' chassis and tuner from a CTC-2 family set.

Someone probably has one...I recently stumbled on spare knobs for my 4 and part of the channel selector knob for a ct-100 (no they do not look like the one you have) in a random lot of knobs.
Good luck on your search.
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Old 10-06-2016, 04:57 PM
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Quote:
Originally Posted by Electronic M View Post
The 21CT55 is really closer to a CT-100 than a CTC-4. The 55 was a 100 with circuit mods to drive a 21" electromagnetically converged CRT, and a different cabinet. The 4 had a completely different 'simplified' chassis and tuner from a CTC-2 family set.
Fact, they share nothing in common aside from maybe the volume and brightness knobs. I've seen CT55's with both plastic and metal rimmed knobs, though I think the plastic ones are correct for the '55.
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Old 10-06-2016, 07:32 PM
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Quote:
Originally Posted by etype2 View Post
I'm currently restoring my RCA 21CT55. The fine tuning assembly is broken. See photo below.

Does anyone have a spare that I could purchase? I'm thinking the same assembly may be on the Director CT4.

Any thoughts on a fix or to replace it? 3-D printer? Thanks in advance for suggestions or help.

http://www.visions4.net/journal/wp-c...s/IMG_0501.jpg
Go here Marshal; I devised a method of repairing these horrible knobs.
http://antiquetvguy.com/WebPages/For...uningKnob.html

By the way I can make you a new cover for that 21CT55 deflection yoke too.
http://antiquetvguy.com/WebPages/MyM...okeCovers.html
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Last edited by ohohyodafarted; 10-06-2016 at 07:36 PM.
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Old 10-06-2016, 08:06 PM
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1Rst Pix I.F. XFMR/Spare fine tuning assembly anyone?

Quote:
Originally Posted by ohohyodafarted View Post
Go here Marshal; I devised a method of repairing these horrible knobs.
http://antiquetvguy.com/WebPages/For...uningKnob.html

By the way I can make you a new cover for that 21CT55 deflection yoke too.
http://antiquetvguy.com/WebPages/MyM...okeCovers.html
Thanks Bob. I will contact you privately.
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Last edited by etype2; 11-27-2016 at 09:12 AM. Reason: New request
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