Early color yoke? - Videokarma.org TV - Video

polaraman · #1 10-23-2006, 09:33 PM

I got this with the TV stuff in Charlotte. RCA part number on the box says 79605. Deflecting yoke 71 degres. Horizontal coil: inductance 11.8MH, D.C. RES 6.6 ohms. Vertical Coil: Inductance 128MH, D.C. RES 58 ohms. What RCA set does it go to?

polaraman

blue_lateral · #2 10-23-2006, 09:53 PM

There was an Ebay auction for a couple of yokes NIB for the 21ct55. I could swear they looked like yours, but now I cant find the auction.

polaraman · #3 10-23-2006, 10:01 PM

They went for a steal at $16.49 for the pair.

polaraman

hposter · #4 10-24-2006, 09:02 AM

I got those two yokes about 15 years ago, when CT-100's and 21CT55's were 'everywhere'. (Somewhere I've got a shot of my storage garage with 4 TRK-12's and 2 CT-100s for sale!!)

One of the yokes were marked 1107505-501 274503, and the other had a similar number. I was told at the time, that they were for 21CT55 televisions. Hopefully they went to someone who will put them to good use!

polaraman · #5 12-13-2006, 09:50 AM

John,

Here are the yokes.

polaraman

blue_lateral · #6 12-13-2006, 01:30 PM

Hmmm... I guess they are completely different. Did you ever figure out what yours goes to?

John

polaraman · #7 12-13-2006, 02:43 PM

Blue Lateral,

I did not and that is why I bumped. John Folsom was going to look at them and make a judgement.

polaraman

John Folsom · #8 12-13-2006, 03:53 PM

Rich,

It kinda looks like a CTC-4 yoke....? The number on my CTc-4 yoke assembly is 1106249-1. Of course, the part number on the RCA box never shows up on the actual part (curse you, RCA).

My 21CT55 yoke has a similar copper back cover plate, but like the yokes shown above (from the Harry Poster ebay auction), it has 3 aluminum standoffs, which support a flat doughnut for ferrous material about 1/4" think and 1" wide.

My CTC-4 yoke, like the one Rich shows, has a copper back cover with a thin flexible metal doughnut supported by 3 standoffs.

The CTC-5 yoke does not have the extra piece mounted on 3 standoffs on the back cover.

So to make a long story short, I think that is a CTC-4 yoke.

andy · #9 12-13-2006, 04:31 PM

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John Folsom · #10 12-13-2006, 08:10 PM

I have seen very few bad yokes on 1940s B&W and early color sets. But it never hurts to have a spare!

fujifrontier · #11 12-13-2006, 08:55 PM

Quote:

Originally Posted by andy

I've only seen 2 or 3 bad yokes and they were all on modern TVs.

that should explain it