Earphone Amplifier (CB416)

Details

Published: Wednesday, 15 July 2015 00:00

Written by Newton C. Braga

This is a amplifier for XTAL high impedance earphones or piezoelectric types. Current drain is very low allowing the use of a 9-V battery. This circuit is recommended for experimental projects as radios, or intercoms. The 3M3 resistor can be changed to achieve the best performance.

Earphone Amplifier