Audio-powered noise clipper

Posted on Nov 10, 2012

Tl and T2 are 600 to 8 ohm transformers (any transistor radio output transformers with 500 to 4 ohm impedance may be used). Ql is a 2N2222 npn transistor, and Q2 is a 2N2907 pnp transistor. Dl and D2 1N270 signal diodes (HEP 134 or 135). Two transistors, powered by the audio power contained within the signal, will clip signal peaks which exceed the threshold established by the 2.5 potentiometer. The diodes isolate the positive and negative clipping circuits represented by the npn and pnp transistors, respectively.

Audio-powered noise clipper
Click here to download the full size of the above Circuit.

A desired audio operating level can be established and the potentiometer needs little or no further adjustment.

Leave Comment

characters left:

New Circuits



Popular Circuits

Power down function
PIC16F627A Touchpad circuit
Video Switcher with PIC16F819
measurement Measuring large differential voltage
Design Of Op Amp Sine Wave Oscillators
5 Minute Digital Clock
3V Supply Splitter
TB6560 Stepper Motor Driver Boards
Stepper Motor Control
One circuit alarm phase
Voltage comparator amplifier circuit