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-   Early Color Television (http://www.videokarma.org/forumdisplay.php?f=36)
-   -   CTC5 Special (http://www.videokarma.org/showthread.php?t=193140)

Ampico-kid 11-14-2008 09:42 PM

Quote:

Originally Posted by Blast (Post 2249181)
Oh, come on! How'd you Photoshop those old pictures on the front of that set?

Oh DARN !!!!! Somebody's finally figured out my secret !! :D

vintagecollect 11-14-2008 10:44 PM

...

Dan Starnes 11-15-2008 12:45 PM

I am very impressed.
Dan

ChrisW6ATV 11-18-2008 01:55 PM

Quote:

Originally Posted by bgadow (Post 2247943)
I'm guessing that someone must make a special driver that will work better than just a small screwdriver on those shafts-the driver keeps falling off while trying to adjust things.

Bryan-

I have a set of TV tweaking tools that includes one or two with a flat blade flush with, or slightly recessed inside, a hollow shaft. They work quite well on those adjustable coils and small-size slotted pot shafts. You should be able to find some from GC (if they are still around) or another supplier.

ChrisW6ATV 11-18-2008 01:59 PM

Here is a link to a few pictures of my CTC-5 Super with the same chassis. I still need to find and fix a problem in the color circuits that causes the ghost-like video.

http://216.101.184.5/ctc5/

bgadow 11-18-2008 02:13 PM

Thanks, Chris, I'll do some searching. I have a pretty good collection of old diddle sticks but not one of those.

wa2ise 11-18-2008 07:10 PM

Quote:

Originally Posted by ChrisW6ATV (Post 2257188)
I still need to find and fix a problem in the color circuits that causes the ghost-like video.

Usually color TV sets use a delay line on the luma signal, to compensate for the delay of teh chroma demod circuits. If that delay line doesn't have a proper termination resistance load, it could cause an echo (ghost).

old_tv_nut 11-18-2008 08:27 PM

Yes, looks like a delay line problem - check the delay line ground as well as resistor values in the video amp circuits.

Steve D. 11-19-2008 01:42 AM

Bob,

Outstanding restoration. My very first color set was the same RCA "Aldrich" Special model. I bought it used in 1962 and it produced a great picture. Like that rare optional base as well.

-Steve D.

ChrisW6ATV 11-20-2008 01:16 PM

Quote:

Originally Posted by wa2ise (Post 2257828)
Usually color TV sets use a delay line on the luma signal, to compensate for the delay of teh chroma demod circuits. If that delay line doesn't have a proper termination resistance load, it could cause an echo (ghost).

Quote:

Originally Posted by old_tv_nut (Post 2258043)
Yes, looks like a delay line problem - check the delay line ground as well as resistor values in the video amp circuits.

Thank you for the tips. I will check the delay line and associated circuitry when I get back into the set. I will be happy if I can get it looking nearly as good as Bob's picture.

frenchy 11-25-2008 01:51 AM

Yowza that picture looks fantastic, congrats on the restoration Bob. I think I'll go to bed now and watch something on my CTC-5 in my bedroom before I go to sleep : )
The contrast/brightness mod is on my to-do list.
Frenchy


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