Re: small signal NPN transitor for muting microphone
- From: Ian Du Rieu <ian.SED@xxxxxxxxxxxxxxxx>
- Date: Thu, 26 Jan 2006 15:18:30 +1030
> What I am trying to do is, mute the microphone by using the transistor as
> explained in the circuit. I can un-mute it by closing the switch. All this
> works fine on one unit I have modified. I need to modify about 200 units.
>
> My question is, can you see any problem with the circuit?
> BTW new parts I will be adding, are:
> one 4.7K register, one Transistor, one diode and a switch.
Why not use a MOSFET? It will handle the small AC signals perfectly,
provided you don't yell into the mic & cause the MOSFET's diode to turn
on.
Cheers,
Ian Du Rieu
The Leon Audio Company
.
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