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B&k 467 CRT Tester
I have a B&k 467 CRT tester I got at an auction. Condition unknown. I brought it home and opened it up and cleaned it all up. I might replace the 7 E-Caps. Anyway when I applied power to it, after about 30 seconds to a minute, a small stream of smoke came from R43, a 30K 10W glass resistor. I turned it off and double checked everything and turned it on again. Still smoked but after a minute or so it quit smoking but the resistor was still too hot to touch. All the meters worked in the set up mode. I can adjust the filament voltage, the G2 voltage and the "blue" meter showed the correct line voltage. I figure that the alcohol and circuit cleaner needed to "boil" off. I don't have a CRT to test so I couldn't check out the rest of the tester.
My question to anybody who has a B&k 467, does yours work with a "hot spot" from R43. BTW, R43 drops about 500V and with about 16ma the power is about 8W. R43 is rated at 10W. There might not be anything wrong with this tester, I just need to know if anybody's other 467 R43 runs hot too. R43 is located just above the tube which is at the lower left hand side of the schematic. Thanks. |
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