Portable Mic Pre-amp circuit diagram


Portable Mic Pre-amplifier circuit diagram

This circuit consume low current supply (about 2mA), so will have a long battery life for supplying the circuit. The circuit built based on a low noise, high gain two stage PNP and NPN transistor amplifier, using DC negative feedback through R6 to stabilize the working conditions quite precisely.


Author: circuit diagram on July 30, 2009
Category: Audio, Pre Amplifier
Tags: audio circuit,  circuit,  microphone,  portable circuit,  preamplifier, 

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1 response to “Portable Mic Pre-amp”
  1. Emmanuel says:
    March 4, 2010 at 7:20 am

    Pls i need 5kva power inverter diagram 4 my school practical thanks. From darex federal polytechnic ado ekiti and dis my email badejo_emmanuel@yahoo.com.

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