Fisher 500 B problem

Tubes Asylum

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I have a 500 B which I have completely restored, including The Fisher Docs's mods. It has worked beautifully for a long time. Lately, though, I have been hearing an annoying hum (60 hz ?) almost exclusively in the right channel. I suspect one of the filter caps in the supply. I replaced one a long time ago when I first bought the unit - but the other 4 multi-sections are original. Is there a way I can trace this hum signal to find the culprit (assuming it is a cap)? These things are difficult to find , not to mention expensive. My tubes are all good. Thanks for any help, guys !!

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Kimber Kable

Topic - Fisher 500 B problem - Blain 08:56:44 01/10/04 (8)

Re: Fisher 500 B problem - SAL887 14:19:17 01/12/04 (0)

First things first. - sgmlaw 18:53:17 01/11/04 (0)

Sheldon Stokes 500C cap board - varkdriver 07:42:47 01/11/04 (0)

Re: Fisher 500 B problem - NoTransistors 16:04:14 01/10/04 (0)

Re: Fisher 500 B problem - hifinutt 12:32:50 01/10/04 (0)

Re: Fisher 500 B problem - mkmelt 09:51:32 01/10/04 (2)

Re: Fisher 500 B problem - Blain 07:29:47 01/11/04 (1)

Re: Fisher 500 B problem - mkmelt 10:10:25 01/11/04 (0)

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