On Tue, 13 Jul 2004 23:15:37 +0200, "pil" wrote:

My electret mic has only two wires. I saw a amplifier ciruict for a electret
which has 3 wires. the circuit consists of a LM741 opamp and a 2N2222
transistor. Can I use a two wire electret? what is the difference?

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The short answer is yes, it can be done. The long answer is:
Why don't you post the circuit diagram so we can see what you're
talking about?

--
John Fields