A small patchable synthesizer.
Tech details:
- uses jumper wires and pin headers for patching
- CMOS-based circuitry
- 3 oscillators with sync and weighted CV inputs
- 2 goofy state-variable filters
- 2 frequency dividers
- 2 4-bit shift registers
- 4-bit R2R DAC
- 2 mults and an extra buffer
- left and right mixers with weighted inputs
- stereo output suitable for headphones
- powered by a 9v battery (rechargeable NiMH recommended)
Manual:
BOM:
- https://docs.google.com/spreadsheets/d/1eRZ8_PK5HJ3nKBCjX_7MApqO0d7YXJZ0Co2NMGjRWOA/ (Use this when sourcing parts)
- https://mattkuebrich.com/roundabout/ibom/ (iBOM)
Discussion:
Videos:
- "rungler" style patch
- roundabout patches
- roundabout battery drain shred sesh
- roundabout (diy chaotic noisemaker) via faux cyrillic
- more roundabout via faux cyrillic
- rack mounted roundabout adaptation for AE Modular via faux cyrillic
- roundabout + reverb/delay/EQ from Bluebox via Keurslager Kurt