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  #16  
Old 04-17-2013, 08:42 PM
old_coot88 old_coot88 is offline
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Quote:
Originally Posted by Electronic M View Post
...You could just unsolder the CRT socket filament wires of the set at the point where they are soldered to the chassis and insert the isolation brightener filament transformer there...That way you would get all the isolation and none of the capacitance video smear.
That wouldn't help a bit, because the offending capacitance occurs between the secondary and primary windings of the transformer itself (the primary being grounded).

As a side note, on some solid state sets that have the CRT heaters running off the flyback ("scan-derived" supply), you can isolate an H-K short without getting the smearing. That's because the capacitance-to-ground is negligible when you 'float' the heaters and their supply winding.
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  #17  
Old 04-22-2013, 11:44 AM
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UPDATE: I was able to clear the H/K short on the CRT by tapping the neck, hasn't done it since. The color issue was a either a bad 6EW6 or 6GH8 (what a surprise) They tested good but one of 'em must be shorted slightly. Anyways, the color is stunning now and the width improved with a new HOT. The convergence is slightly off again but not bad enough, I'll fix it by this weekend. Here are some screen shots, just for you Ron! The black and white shots turned a bit red in the pictures but the set looks fine in person, the camera added a bit of sepia.








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  #18  
Old 04-22-2013, 11:56 AM
dieseljeep dieseljeep is offline
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Looking at the picture of the early Stooges, there was product placement back then.
It's strange seeing one of those sets without a UHF tuner.
It was one of the first sets I bought and sold back in 1966. I paid $100.00 for it back then. That one also had an H-K short in the CRT.
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  #19  
Old 04-22-2013, 12:03 PM
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As an aside, I LOVE watching The Stooges, if for no other reason than you DO get a glimpse of life as it was back in the Thirties & Forties, & get to see all those lovely old cars as they were REALLY used...The Roundie ain't bad, neither...(grin)
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  #20  
Old 04-22-2013, 12:49 PM
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sampson159 sampson159 is offline
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thanks for posting.isnt it amazing how good cartoons look on our roundies?beautiful set and great job restoring
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  #21  
Old 04-22-2013, 03:17 PM
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Quote:
Originally Posted by sampson159 View Post
thanks for posting.isnt it amazing how good cartoons look on our roundies?beautiful set and great job restoring
Thanks Ron! Yes, it is amazing. Try watching a very high quality Anime on one sometime, your jaw will drop! Here pretty soon (like a week) I'll be fixing the broken cabinet on this one, I have a lot more confidence that it will turn out nice after the way the CTC7 did. Then maybe, just MAYBE the whole set will look as nice as the picture does.
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  #22  
Old 04-22-2013, 03:51 PM
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simply awesome. i have a ctc 7 and a ctc 10. steve
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  #23  
Old 04-22-2013, 03:54 PM
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what did you use to clean the chassis. looks like new. steve
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  #24  
Old 04-22-2013, 09:24 PM
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Excellent, and the weather gal ain't bad either.
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  #25  
Old 04-23-2013, 12:17 PM
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Great pictures!

Nothing better than watching quality color programming via tubes.

I love the gray and gold accented escutcheon on that model.
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  #26  
Old 04-23-2013, 02:03 PM
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Quote:
Originally Posted by rcaman View Post
what did you use to clean the chassis. looks like new. steve
I use a toothbrush, little cup of water with Dawn dish soap and some microfiber cloths. It even cleaned up the cad dust without a problem. I was very hesitant about compressed air with all of that stuff on it.

Quote:
Originally Posted by DavGoodlin View Post
Great pictures!

Nothing better than watching quality color programming via tubes.

I love the gray and gold accented escutcheon on that model.
I really like it too, It's my favorite 11 bezel. I was lucky enough to find two 11's that have the separate safety glass and this bezel. My other set, after refinishing, IMHO will be absolutely gorgeous with the real mahogany veneer and solids.

Quote:
Originally Posted by Dangler View Post
Excellent, and the weather gal ain't bad either.
She's cute, but I've seen better. I liked the old weather girl more. Believe it or not, her name was Amy Freeze.LOL! The one thing I really liked about this girl was her dress, it looked very good on her, and my tv set
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  #27  
Old 04-29-2013, 02:38 PM
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Here are some screen shots that are motion blurred. Although, I still really like them for some reason


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  #28  
Old 04-30-2013, 11:55 PM
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You cleaned that chassis up beautifully. Very nice peekture too.
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  #29  
Old 05-05-2013, 12:04 AM
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I adjusted the HOT cathode current tonight, the best I could get was 209mA. Not the best but better than the 218 that it was. I'll have to do some more checking as to why it won't come down a bit more. I also noticed the 6BK4 glowing brighter than I've ever seen before. What causes that?? My other CTC11 does it too but none of my other sets.
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  #30  
Old 05-05-2013, 08:36 AM
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What is HV set at? If the regulator is glowing, there may be something awry with the grid bias circuit causing it to draw too much current. You can check by putting a current meter set to 0-1ma in the cathode circuit; with brightness at minimum you should have .8-1ma on the meter, and HV should be whatever the manual says. Usually around 23kv. If the regulator circuit checks out, roll 6BK4's you might have a bad one. There are more rugged versions on the streets, I have a 6BK4C from Tandy that looks like it has way heavier plate structure. But since I run most of my regs at minimum all the time, I never have this problem.
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