Re: amplifier

Eeyore wrote:
> John Popelish wrote:
>
> > Bypassing that resistor with a capacitor
> > restores the gain at high frequencies
>
> Could be audio frequencies too depending on the size of the cap.

Yes.  The definition of "high frequencies" is strictly dependent on the
relative reactance of the capacitor to the resistance of the resistor.
1/(2*pi*R*C) Hz is the arbitrary boundary between low frequencies and
high frequencies, in this case.