PSN-L Email List Message

Subject: gepohone pre-amp circuitry
From: macsmith macsmith@.........
Date: Wed, 22 Dec 1999 08:49:10 -1000


Hi,

I'm about to put a simple 10x or 100x pre-amp onto my 4.5 Hz geophone
which I recently got from the Group-Buy.

What sort of damping circuit should I put in front of the amplifier to
prevent the geophone from simply oscillating?  Also, what attenuation
would this represent?

Sorry if this has already been covered.

Cheers

Ian Smith


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Larry Cochrane <cochrane@..............>