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Post subject: Super 60 repair
Posted: Wed Jan 15, 2014 11:21 am
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I had to repair a Fender Super 60 amp for a fellow musician ... one of the input jacks was quite noisy and I did an overall health check on it.

First off, man to get at the back of the input jacks requires removing the large PC board! quite a hassle! Also the left input jack is a separate jack, not attached to the input PC board. The left jack has input Z of ~ 1Mohm and the right jack (when nothing plugged into high Z input) has a Zin ~ 140 kohm but signal at tube input is half that (from 2 68kohm divider) ... which accounts for the low signal level on second channel.

Fixed bias on PTs measured to be 8 and 12 mA! wow .... pretty cold ... (my TRR was measured at factory to be 15 mA which I jacked up to ~ 33 mA).

Does anyone know if that entire input PC board (PN 028919 C) is still available and how much or if I can contact Fender directly to ask? (what number).

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Post subject: Re: Super 60 repair
Posted: Wed Jan 15, 2014 11:28 am
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Joined: Wed Mar 31, 2010 12:48 am
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For an amp of that age, I doubt that Fender stocks any replacement parts.

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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