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| To: | rsgb_lf_group@blacksheep.org |
|---|---|
| Subject: | Re: LF: Re: VLF/LF-Preamp |
| From: | Chris Dillon <c.r.dillon@dsl.pipex.com> |
| Date: | Wed, 30 May 2012 19:27:52 +0100 |
| In-reply-to: | <4FC649A5.2080700@legal-medicine.de> |
| References: | <4FC39CF3.7020701@legal-medicine.de> <003a01cd3cee$0e74a1a0$1502a8c0@Clemens04> <4FC51191.8060004@legal-medicine.de> <4FC51B11.3010907@iup.uni-heidelberg.de> <4FC525DA.9040204@legal-medicine.de> <4FC600C8.40903@dsl.pipex.com> <4FC649A5.2080700@legal-medicine.de> |
| Reply-to: | rsgb_lf_group@blacksheep.org |
| Sender: | owner-rsgb_lf_group@blacksheep.org |
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Many thanks indeed, Peter. 73 Chris On 30/05/2012 17:24, pws wrote: 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) ason 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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