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7805 circuit diagram

April 25, 2011 · Posted in Power supply · Comment 

7805 circuit diagram

Low impedance microphone amplifier is the best

November 10, 2009 · Posted in Design · Comment 

The circuit is a microphone amplifier for use with low impedance (~200 ohm) microphones. It will work with stabilized voltages between 9-30VDC. If you don’t build the impedance adapter part with T1, you get a micamp for higher impedance microphones. In this case, you should directly connect the signal to C7.

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