Jasen Betts wrote in a message to Roy J. Tellason:

 RJT> Anybody know offhand if most sound card mic inputs are designed
 RJT> for a stereo-style plug interfacing an electret-type mic

 JB> yes. or dynamic - you can even use a set of heaphones instead if
 JB> you speak loud.

Interesting.  I've got a couple of sets of busted ones around here,  and
was wondering if they'd make decent transducers working in the other
direction.  Probably needs a suitable preamp,  though.  And I may have
found such a circuit,  in my collecting of circuits recently.

Seems to me that information oughta be published *someplace* on the 'net, 
I just haven't stumbled across it yet.

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