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Re: LF: Re: VLF/LF-Preamp

To: [email protected]
Subject: Re: LF: Re: VLF/LF-Preamp
From: pws <[email protected]>
Date: Wed, 30 May 2012 18:24:05 +0200
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Hi Chris,

You wrote:
...
Sorry I missed your earlier posts in the change to Yahoo Groups. I'd like
to try a balanced probe - are you using the same circuit (with INA111) as
on the www.vlf.it site or have you modified it?
...

O.K. - here's the schematic once again:
http://www.df3lp.de/misc/rx/INA111_preamp.png

and the datasheet:
http://www.ti.com/product/ina111

Indeed this is my 2. prototype. Here's a quick and dirty
collection of the first for VLF:
http://www.df3lp.de/misc/rx/efield/

Please keep in mind that both are prototypes and there's
much room for improvement, especially at the input network.

Peter, df3lp


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