YOuTube via dasfx33 "24 patch and phototheremin circuit bend monster synthesiser Casio Sk1 all circuits made by ddc I choose special points on the board only this witch made nice noisy and glitch loops and controllable sounds and conections on modular board."
Mini Space Rockers is a pushbutton analog drum with four transistors; You choose three capacitors to customize pitch and envelope. Its nice hot output level is guaranteed to distort any guitar amp more than Stevie Ray.
It is designed as an intro-to-soldering project for Handmade Music Austin. The unit in the video is a prototype; 'real' PCBs will be used in the workshop."