Any suggestion on the opamp.. i use 741 b/cause it's safer since it's general.


On Tue, 12 Oct 2004 21:18:11 -0500, Dave VanHorn <dvanhorn@dvanhorn.org> wrote:
> At 09:06 PM 10/12/2004, res0qrqr@verizon.net wrote:
> 
> >My first thought is that an LM741 has less than stellar
> >performance at 40 kHz.  You are probably running out of
> >open loop gain, and experiencing some unwanted phase
> >shift.
> >I'd suggest you try a more modern opamp on your
> >breadboard.
> 
> There's that too.. Slew rate limits like having a cap across the feedback
> as well.
> 
>
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