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Mr. Microphone Answered

I had an idea for a Mr. Microphone, is it possible to modify it to run off my MP3 player so that instead of your voice coming in over the radio its your MP3?


. Connect the output of the MP3 player to the where the microphone is. You will probably need an attenuating resistor to reduce the level so as not to overload the (pre)amp.

Wouldn't the volume control bring it low enough?

.  Probably not. And if it did, a very small change in the player volume would result in a very large change in the output volume (no fine control). An attenuator will help.

Minimum volume, trial and error upwards you get a nice level, make a note of it, or skip the preamp in the circuit

Thank you very much. Now I have work to do.