[sdiy] simple audio mixer for single rail power source?

[john mahoney]

Use an LM308 or LM386 "power amp" IC instead of an op amp? Craig
Anderton's old "Electronic Projects for Musicians" has an LM380-based
headphone amp, for one example.

The TI application note "Single-Supply Op Amp Design Techniques" may
be useful. Sorry for the long link, but here it is:
http://focus.ti.com/docs/analog/catalog/resource/appnoteabstract.jhtml?familyId=78&abstractName=sloa030a
--
john


----- Original Message ----- 
From: "Julian"
>
> Im just after a design for about the simplest mixer i can achieve -
just a load of inputs, one output, and a pot for each ones
> inputs volume.
>
> The catch is that i need it to be single rail.  Probably just
running off a 12v wall wart type affair.