Re: [LAU] sortof OT -- ART tube pac preamp and compressor noisy?

From: Ralf Mardorf <ralf.mardorf@email-addr-hidden-dsl.net>
Date: Tue Aug 13 2013 - 23:57:05 EEST

> On Tue, 2013-08-13 at 16:00 -0400, Martin Peach wrote:
> > If the motion of the transformer plates is vibrating the elements
> > inside the tube, the tube could act like a microphone. In the OP's
> > case there is a lot of gain, so it might be the cause.
>
> Unlikely, even a spring reverb shouldn't vibrate caused by vibrations of
> a loud, but small transformer. Even a bad transformer still isn't a
> truck-mounted seismic vibrator, even not a massage table.
                                                     ^^^^^ stick ;)

Btw. I guess the cause is a ground loop and/or what Fons pointed out and
nothing else.

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Received on Wed Aug 14 08:15:03 2013

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