mics to speakers (at)

Subject: mics to speakers
From:    at <HARTMANNPA.MSU.EDU>
Date:    Thu, 7 May 1998 08:59:01 -0400

To list,

        A dynamic microphone (coil and magnet) can be
used as a small speaker for the same reason that a generator
can be used as a motor. Bob Masta has noted that
a condenser microphone is similarly reversible. But
many inexpensive condenser microphones come with built-in
FET, and these are presumably not reversible because of the
asymmetry of the FET.

Best,

Bill H.