I love that people do this kind of thing. It’s great!
Zenotron – Built for my friend Zeno in 2014. Case was built from an old modem, the “monitor” is a filmstrip viewer cut in half. Keys come from some toy piano with each key activating a tactile switch. Micro joystick (Parallax brand) controls arpeggio rate and waveform. Sound from Nebulophone clocks a 4017 based sequencer to blink the 88 LEDs mounted in a pipette box. 1/4″ output, 9VDC external power supply. www.mysterycircuits.com