This Module is a prototype or in a concept phase.
Magic Smoke Electronics Thomas Henry TH-101 VCO
From Modularsynthesis.com or someone who used their Front Panel Express design file. https://modularsynthesis.com/magicsmoke/566/566.htm
https://modularsynthesis.com/magicsmoke/566/566.htm
Included in 2 Racks, 1 are public:
