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> >noise.
> >a) Upgrading the op amp in the white noise amps to make even ∗whiter∗
> >Also, the new ampIt's an OP-275GP. You can't just "swap it out", as 4 other resistor/cap
> >runs at a lower gain, so more noise gets through.
>
> paul, would you mind stating what the new opamp is, (is it the same pinout
> as the old-- is a straight swap possible?)
>