How to connect a condenser mic to pick up voice?

[saturn]

Condenser MIC

Hello all,
How could I connect a condenser mic to pick up voice?

Thanks.

 

[IanP]

Re: Condenser MIC

Here you wll find some info:
**broken link removed**

 

[saturn]

Condenser MIC

Dear IanP,
Thanks very much.

OK now I get something to work with. But Can anyone please explain the circuit. For example the purpose of R1, R2, R3. I think C3 is for coupling purpose. But what about C2?

Thanks.

 

[IanP]

Re: Condenser MIC

C2 limits the bandwidth and most likely prevents against oscillation in the circuit.
R1- dc to mic,
R2/R3 dc bias to buffer/emitter follower based on T1,
C3, C4, C5 and C7 - coupling caps,
2-stage amplifier (gain ~2) based on T2,
R5/C1 - LPF.