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#1
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Last edited by andy; 12-07-2021 at 01:40 PM. |
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#2
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once the base cement is loose make a loop tip for your weller gun from 12ga bare copper.form it to hit all pins at once,tin it and desolder the base.
tubes with one totally dead gun are about 50/50 open pin in base to open weld inside.that is as long as the heater is good in the suspect gun.
__________________
i collect and restore vintage radio's,tv's,and ham gear. email for more info |
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#3
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Back in the 70s I had a Motorola with a round tube, I don't remember which tube, that had the same problem. I could see in the neck that the heater for the green gun was not lighted. I found that if I tapped on the neck of the tube, the connection would make and as long as the set was on, it worked. The set was of the transformerless type, with series heater string, and had a heater transformer only for the picture tube. I wired the heater transformer ahead of the off-on switch so the tube heater would be energized all the time. The fix worked for well over a year until I found a better tv in someone's trash, a Setchel-Carlson, and got rid of the Motorola. The only issue with it was anytime that the power went out, or the tv got unplugged, I had to take off the back and tap the neck of the tube.
Now of course I wish that I had kept both of those tvs. |
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