CRT Test Went South?
I got a Philco 49-1002 with a 10BP4 CRT. I hooked it up to my BK467 tester. At first there was no cutoff as expected. After a few minutes the cutoff started to work and the emissions started to climb. After about 5 minutes or so the needle was at the bottom of the green. I left it for about 15 minutes and when I came back, the needle was well into the green. Not quite mid scale into the green. Not bad.
I then hooked up my Beltron and after bringing up the filament to 6.3V I have good glow but zero emissions on the meter. What?!! I double checked the connections and the connector and the same thing. Zero, nada, zip. I then hooked up the BK467 again, and set the filament to 6.3V (good glow), this time zero cutoff and zero emissions. I'm perplexed. What happened? Anybody have any ideas? Thanks. |
Reflow the solder on all the base pins. If you have a cold solder joint it can come and go like that.
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