Re: Electrets, Hey Scott
- From: kludge@xxxxxxxxx (Scott Dorsey)
- Date: 31 Aug 2005 08:56:23 -0400
Neon Sound <no@xxxxxxxx> wrote:
>"Bob Cain" <arcane@xxxxxxxxxxxxxxxxx> wrote in message
>news:df3for0lg5@xxxxxxxxxxxxxxxxxxxxx
>>
>>
>> Actually, you can make them externally polarized. Just apply a voltage
>> between diaphragm and back plate. The E field will add to whatever is
>> there from the electret whether it's on the diaphragm or the plate.
>>
>Are you kidding?
>(1) Good luck finding 1 gigaohm resistors to bias the capsual.
Digi-Key stocks them and has for about seven years now. They are a
couple bucks each.
>(2) Good luck finding somewhere to attach a wire to the diaphragm.
There's already one attached on the capsule. We're not talking about
an integral-FET capsule here.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
.
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