
If you like vintage electronics magazines, there are scans of some quite old issues of Practical Electronics in the Internet Archive.
The fuzz schematic above came from the November 1967 issue.

The fuzz schematic above came from the November 1967 issue.
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from the archive.
Jack Orman has been involved in FX design and construction since the mid-1970s.
The fuzz above is nifty, but I found the Echo Unit in the September ’65 issue to be quite interesting.
Sean
Another fuzz circuit is found in the July ’66 issue. That seems pretty early for fuzz in a hobby magazine. What is the earliest reference to fuzz circuits you have found in the hobby magazines?
Sean
Yeah, that is going to be one of the earliest fuzz circuits. I’m not aware on any older but someone else may have input.