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Author Topic: pre amp question...  (Read 5231 times)

Dj Task Manager

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pre amp question...
« on: June 25, 2011, 03:03:15 PM »

I built one of these preamps

http://www.diyguitarmods.com/guitar-preamp.php

and it works lovely for picking up the piezo im using in a spring verb project.

I was wondering if there was a way to boost the output a little by swapping any components.

Any thoughts?

Cheerz!
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Gordonjcp

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Re: pre amp question...
« Reply #1 on: June 27, 2011, 10:49:39 AM »

Try varying the 2.2k resistor in the FET source leg.  You could also try bypassing it with various values of capacitor, which will allow you to alter the frequency response a bit.
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