[sdiy] Semi-OT: phantom-powered balanced line driver?

[Dave Manley]

Don Tillman wrote:
>    > From: Ingo Debus <debus at cityweb.de>
>    > Date: Tue, 10 Oct 2006 19:26:48 +0200
>    > 
>    > I've bought a nice little electret condenser microphone (for my  
>    > flute). 
>    > 
>    > Now, how do I get a balanced output? 
> 
> There were several nice balanced-output discrete transistor mic preamp
> circuits that were often referenced on the usenet audio group (in the
> days before web browsers).  These circuits were typically used to
> improve the Radio Shack PZM mic's, which were inexpensive, readily
> available and fun to modify.
> 
> So, do a web search for 'pzm schematic', you'll find them.
> 
>   -- Don
> 

Maybe something like this?

http://sound.westhost.com/project93.htm

-Dave