Build your own synths and modules
Business Card Oscillator
Tiny oscillator that can be played by itself or connected to other synth gear
Business Card Sequencer
The BCS packs a lot of sequencer into a tiny package! This 16-step circuit can work as a sequencer or as a handheld keyboard.
Dual Mini Sequencer
2x 16-step sequencers in a small form factor.
Enclosure Kit for Business Card Sequencer
Enclosure for your Business Card Sequencer
Sign up to build a Business Card Oscillator kit at Knobcon Number Seven