my external-input amp (revised)

[Don Tillman]

   Date: Thu, 13 Jun 1996 01:27:19 -0800
   From: haines at apc.net (Matt Haines)

   OK, here's my revised external-input amplifier schem. 
   Please feel free to comment.

Accch!  You can't put the pot between the output and (-) input like
that; any lack of connection as you turn the pot will open
the feedback loop causing the output to slam to one of the power
supplies.  Ie., it'll be *really* scratchy as you turn the pot.

Also, the point of the clipping zeners is to keep the opamp from
raw clipping, but that won't happen when the zeners are after the
opamp.