180 Dual Attack-Decay Generator
All-discrete attack/decay-style envelope generator, based on the Buchla 180 circuit.

Bill of Materials (value/qty)
- Resistors
- 10r x 2
- 22r x 2
- 100r x 2
- 220r x 4
- 1k x 4
- 1k5 x 2
- 2k2 x 4
- 3k3 x 2
- 4k7 x 4
- 6k8 x 2
- 10k x 20
- 22k x 6
- 33k x 2
- 47k x 10
- 100k x 4
- 50k pot. x 2
- 250k pot. x 4
- Capacitors
- 910pf x 4
- 0.1uf x 2
- 1uf x 2
- 15uf x 2
- 100uf x 2
- Transistors
- Misc.
- SPDT switch x 2
- ferrite bead x1
- banana jacks, pulse in (red) x 2
- banana jacks, out (black) x 4