View Full Version : Spare fine tuning assembly anyone?


etype2
10-06-2016, 04:16 PM
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-content/uploads/IMG_0501.jpg

Electronic M
10-06-2016, 05:14 PM
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.

miniman82
10-06-2016, 05:57 PM
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.

ohohyodafarted
10-06-2016, 08:32 PM
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-content/uploads/IMG_0501.jpg

Go here Marshal; I devised a method of repairing these horrible knobs.
http://antiquetvguy.com/WebPages/ForSale/RCACT100FineTuningKnob/CT100FineTuningKnob.html

By the way I can make you a new cover for that 21CT55 deflection yoke too.
http://antiquetvguy.com/WebPages/MyMethods/ReplicaYokeCovers/ReplicaYokeCovers.html

etype2
10-06-2016, 09:06 PM
Go here Marshal; I devised a method of repairing these horrible knobs.
http://antiquetvguy.com/WebPages/ForSale/RCACT100FineTuningKnob/CT100FineTuningKnob.html

By the way I can make you a new cover for that 21CT55 deflection yoke too.
http://antiquetvguy.com/WebPages/MyMethods/ReplicaYokeCovers/ReplicaYokeCovers.html

Thanks Bob. I will contact you privately.