portable microphone preamplifier circuit schematic


Posted on Feb 5, 2014

This circuit is mainly intended to provide common home stereo amplifiers with a microphone input. The battery supply is a good compromise: in this manner the input circuit is free from mains low frequency hum pick-up and connection to the amplifier is more simple, due to the absence of mains cable and power supply. Using a stereo microphone the circuit must be doubled. In this case, two separate level controls are better than a dual-ganged stereo potentiometer. Low current drawing (about 2mA) ensures a long battery life..


portable microphone preamplifier circuit schematic
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

6 Input Mixer PCB
Simple Pyro RF Transmitter (27 MHz) Circuit
Infrared IR Receiver Circuit
Servoelectric Guitar Project



Top