Microphone powering ideas

New Line Techtalk Phantom Supply web page shows how to build a very simple design for a phantom supply. Now since the question was for a simple phantom supply, fed by batteries, the choice was made to use two 9V batteries (since a lot of microphones can be run from phantom voltages as low as 10V).

phantompsu

On the same web page there is also another circuit for powering electret microphones is by means of “T-power”.

You can find more information on microphone powering at my document Powering microphones.

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