scott 340b (early) tuner fail

Vintage Asylum

Classic gear from yesteryear; vintage audio standing the test of time.

Hi: Put in some new caps and the low voltage bridge and now the amp section is working but the tuner is intermittent. Something is pulling down its B+ rails. It will work for a short time then all the B+ gets sapped and the neon lights go out and there is no radio. Amp continues to work fine. Opened up a IF can and all looked fine: no dead bugs shorting stuff out. Let it rest overnight, maybe it will work for a few minutes then die again. Wiggled cans, removed all FM tubes: still bad. Am wondering about removing the tiny caps to ground (.005) one by one or freezing them with freon spray? Ideas appreciated. Thank you. --Tom

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Topic - scott 340b (early) tuner fail - thermionic emitter 21:03:56 02/01/17 (6)

RE: scott 340b (early) tuner fail - Michael Samra 03:06:25 02/04/17 (1)

RE: scott 340b (early) tuner fail - thermionic emitter 08:46:01 02/04/17 (0)

RE: scott 340b (early) tuner fail - DannyR 01:09:23 02/04/17 (1)

RE: scott 340b (early) tuner fail - thermionic emitter 08:27:36 02/04/17 (0)

RE: scott 340b (early) tuner fail - fredtr 05:28:45 02/02/17 (1)

RE: scott 340b (early) tuner fail - thermionic emitter 11:23:29 02/02/17 (0)

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