[34] Barbarello Fuzz

Date: July 23rd, 2007 | Comments : [2] | Categories: Uncategorized.

Barbarello Fuzz

Barbarello Fuzz from Pop Electronics

Here is another fuzz circuit from an old issue of Popular Electronics. It is a James Barbarello design that uses a 741 opamp to overdrive a PNP germanium transistor to create the distortion. However, with all that gain on the 741 with only a 4.5v supply range, it is almost certainly creating distortion before the signal gets to the transistor.

I would make a couple of mods to the circuit if I were building it today. I would add a 1uF film capacitor in series with the input before R1. Also, R6 and R7 are not needed; leave them out.

The power supply, which uses three AA batteries could probably be reworked to make the circuit run off a single 9v, but that’s a project for a rainy day.

The 2N404A transistors that I sell should be a good substitute for the 2N705 used in this unusual design.

Get the pdf file of the complete project here.


2 Responses to “Barbarello Fuzz”

[59] David Schwab Says: 4:15 pm, August 18th, 2007

Cool! I was looking for this article. I built this pedal once for my guitar player back in the 80’s. It got some great fuzz tones.

[165979] admin Says: 8:17 am, September 9th, 2014

Here is a demo of this circuit from a version built from a kit over 40 years ago:




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