I had just started another transmitter for someone else on a design i have never used, it may be the same one that i posted here, but i just realised that the electret mic has 3 pins on the schematic? i am not experienced that much with mics, can anyone tell me if they have ever seen an electret mic like this, all mine only have 2. luckily i had just test assembled on a breadboard and hadent soldered yet.

Edit: yeah it is the schematic i posted before

I know some mics are so small, the diaphram moving cannot create enough current, so "phantom power" is used. Effectivly a small amp in the mic, so there is enough power for all of the other components to work with the mics' output.

Later

Rosie

oh.. well thats good to know, thanks. Chris.