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I received my 12GN7 tubes today.. There are 3 of them, and my B&K 747B tester tests them all in the weak range.. I'm not sure why.. If it's really my tester, or all these tubes are weak.. The eBay auction stated them all being strong.. one goes up around the "?" range, and I used that tube.. I get better color and the picture in all looks better, but I still can't adjust the contrast.. The worminess seems to be at the normal minimal..
with one of the tubes, After being on for a few minutes, I noticed the color becomes out of sync...
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Looking for an all tube or hybrid color TV set from the late 1960s, early 1970s that's in a steal cabinet..
Last edited by tvcollector; 05-21-2015 at 02:13 PM.
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