Hi all,

Recently I have bought an used Geotech SL 220, now I would like
to use the SL 220, just like my Lehman.

So, does anyone have any experience with a horizontal Geotech SL 220 
and running it with Larry's filt/amp and 16 bit A/D? If so, please let me 
know.

Thanks in advance,

Marchal van Lare
The Netherlands
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