Most Helpful Member
I am glad to hear that it works. I used an electret mic from a smashed old cell phone. Lots of toys and wireless phones use electret mics that you could use.
Which circuit did you build?My new Electret mics arrived to day I put one on the FM transmitter. Sound still clips terrible. I tested the voltage on the board batteries are 9v the other side of the 5v regulator reads 5.2v. There are some harmonic frequencies I finally got a very good signal tuned into 106.4MHz but sound is terrible. When I push the radio button to search for stations it stops on 106.4 When I talk into the mic i can barely understand the words on the radio.