"Dave Plowman (News)" wrote in message
...
In article ,
Arfa Daily wrote:
I've never found them to be particularly heat sensitive within common
sense limits, but note that they are polarity sensitive, as they
contain a FET preamp which is phantom powered via the output terminal
...

A few electret mic are phantom powered but the majority use a form of AB
power for the capsule.

--
*Gun Control: Use both hands.

Dave Plowman London SW
To e-mail, change noise into sound.


I'm using the term "phantom powered" loosely Dave, in that the audio out is
floating on the DC in, because there are only two connections, one of which
is the FET drain terminal, the series DC 'feed' resistor therefore actually
being the drain load resistor. The other terminal (also the capsule case) is
of course ground or FET source. Where there is this type of power / signal
setup, it is often considered generically, to be 'phantom powered' ...
Excuse my ignorance, but what's "AB power" ?

Arfa