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Subject: Re: Best Op Amp for A Seismic Preamp ?
From: Christopher Chapman chrisatupw@.......
Date: Mon, 14 Mar 2011 18:20:44 -0400 (EDT)




Subject: Best Op Amp for A Seismic Preamp ?


I just purchased an OP027 to replace the OP177
hich I now use but saw no difference in the results.
he baseline shifted 200mV but that compensated
icely using the zero feature at pins one and eight.
Can anyone say there's a better Op Amp than these
o use as a Preamp ?
Hi Geoff,
    You can type the opamp numbrs into Google
and obtain free data sheets. They usually give=20
noise specifications. The LT1007 is a better=20
opamp.
    Regards,
    Chris Chapman


= Subject: Best Op Amp for A Seismic Preamp ?

I just=
 purchased an OP027 to replace the OP177
which I now use but saw no difference in the results.
The baseline shifted 200mV but that compensated
nicely using the zero feature at pins one and eight.

Can anyone say there's a better Op Amp than these
to use as a Preamp ?

Hi Geoff,
    You can type the opamp numbrs into Google
and obtain free data sheets. They usually give 
noise specifications. The LT1007 is =
a better 
opamp.
 =
   Regards,
    Chris Chapman

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