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Old 03-25-2011, 01:36 AM
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miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,183
As advertised, the set works when I plug it in. Bad news is there's a strange red flicker in the picture, vertical height is not what it should be, and something smells bad after being on a minute or so...

Yanked the chassis and started looking for what I assumed would be a cap with one lead in the grave, but everything looks brand new in this chassis. Cap search was inconclusive, so I used my nose to see if I could track down the source of the foul odor. It seemed to be coming from the PCB with all the demod and driver stuff on it, but at first I didn't see anything. That got my analytical aviation eyes in high gear and I stared and stared- then I saw it: carbon tracking from pin 6 to 7 of the X demod/R-Y tube! It's a 6BL8, pin 6 is the plate and 7 is the cathode/supressor of the demod section. Looks like I'll have to dig the burnt crud out, and see if I can push some epoxy in the space left over to try and clean it up. If you guys have a better idea on how to fix that, I'm all ears.

Hopefully after fixing the demod trace, this thing should produce a color picture!
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Last edited by miniman82; 09-22-2011 at 07:27 PM.
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