View Full Version : 21ct55 #2731


wiseguy
07-06-2013, 01:39 PM
....

ChrisW6ATV
07-07-2013, 04:49 PM
Nice to see that set on its way to good operation.

Zenith6S321
07-07-2013, 09:55 PM
Cool, looks like you are making good progress. Glad to see your CRT is good! When I get some time I'm going to try using the Sencore VA62 alignment procedure to try to get rid of my vertical white line. Good luck with yours.

Dave

miniman82
07-08-2013, 02:39 PM
Poor sync can still point to horizontal issues, make sure you have all the correct voltages. I just use the procedure in Sams, it's a good one.

wiseguy
07-08-2013, 03:49 PM
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miniman82
07-08-2013, 06:24 PM
I am Curious what type, or part number everyone has used for the ALL 250uh peaking coils, since there are many and I was able to get what was in the sams Meissner brand, "19-3250"

I didn't worry about originality with those, I just shopped at Digikey:

From phase detector to reactance tube grid: M10101-ND (1 piece)
Matrix output to CRT: M10093-ND (3 pieces)
Y-line, near delay line: M10082-ND (1 piece)
R-Y demod/amp: M10083-ND (2 pieces)
Q demod: M10098-ND (1 piece) and M10127-ND (1 piece)
Y-line near 2nd video tube, and matrix power input: M10106-ND (5 pieces)


^ That's from my CT-100 resto, but the 2 chassis are similar enough. I put the same coils in both my CT-100 and 21-CT-55, the colors on the screen were very nice. No one will know you didn't get correct pi wound coils, it dosn't appear to make any difference.

wiseguy
07-20-2013, 03:42 PM
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wiseguy
07-20-2013, 06:22 PM
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Sandy G
07-20-2013, 06:54 PM
But you're SO close ! I wish I had, 1) a '50s color TV, & 2) the technical knowledge/ability to work on it & NOT kill it..

wiseguy
07-21-2013, 01:34 PM
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wiseguy
07-21-2013, 01:35 PM
Well here Sandy, you can take this one on.
:)
But you're SO close ! I wish I had, 1) a '50s color TV, & 2) the technical knowledge/ability to work on it & NOT kill it..

Sandy G
07-21-2013, 02:01 PM
Danke Schoen, but do the words/phrase "Bull in a China Shop" mean anything to you ?!?

wiseguy
07-21-2013, 05:57 PM
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Zenith6S321
07-21-2013, 06:50 PM
Nice progress! The current through the fuse in my CTC2B is also right around 206-208. I think I finally have a good IF alignment, but I still have a little more work to do on the color alignment.

Dave

wiseguy
07-21-2013, 07:01 PM
:) :)

wiseguy
07-21-2013, 07:30 PM
delete

Zenith6S321
07-22-2013, 08:12 PM
My cheap little camera makes the image look more red and blue and less yellow than what I see. I'd guess better camera let you change that.