Fuzz-box circuit

Posted on Dec 26, 2012

This circuit was designed to obtain a valve-like distorted sound from an electric guitar or other musical instrument. For this purpose a very high gain, three-FET amplifier circuit, was used. The output square wave shows marked rounded corners, typical of valve-circuits when driven into saturation.

Fuzz-box circuit
Click here to download the full size of the above Circuit.

Technical data: Input sensitivity: 30mV RMS. Output square wave: 6V peak-to-peak max. Total current drawing: about 1mA. Circuit set-up using oscilloscope and sine wave generator: Connect a 1KHz sine wave generator to J1 and the oscilloscope to J2.

Leave Comment

characters left:

New Circuits



Popular Circuits

Single injector-tracer
60 LED Clock
Doppler Rdf
lm1881 video sync for tv and lcd monitor separator
Electrocardiagram (ECG / EKG) for DrDAQ Data Logger
Negative oxygen ion generator 4
One way to prevent reverse polarity of the DC power supply circuit