Thursday 30 November 2023

Electro Harmonix The Worm / Madbean Charlatan

 A vintage big box The Worm with some useful improvemnts and mods by Madbean. The power section have been reworked by a voltage doubler and a voltage regulator for 9v to 15v operation. An internal volume trimpot is added. And the unknown original vactrols is replaced by a trio of LDR/LED pair.

Schematic and more information is avaiable HERE.


 


2 comments:

  1. Anders, you're a legend. ...This one's gonna hurt though.

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  2. Looking this over. The rotary should be 2P4T. Also if you don't have a bipolar electro a 1uf MLCC can be used, according to Madbean.

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