110 Dual Voltage-controlled Gate
A pair of all-discrete VC Gates (VCAs) based on the Buchla 110 circuit. This design is transistor-based, and preceded the Lowpass Gate with its distinctive vactrol "ring" sound.

Bill of Materials (value/qty)
- Resistors
- 10r x 2
- 150r x 4
- 220r x 2
- 330r x 4
- 470r x 2
- 680r x 4
- 1k x 2
- 1k5 x 4
- 2k2 x 10
- 4k7 x 2
- 6k8 x 8
- 10k x 2
- 33k x 2
- 68k x 4
- 330k x 2
- 1k trimmers x 4
- 50k pot., audio taper x 2
- Capacitors
- 0.01uf x 2
- 1uf electro. x 2
- 100uf electro. x 4
- Transistors
- 2n3565 x 14
- (note: 2 pairs should be matched, or substitute 2 x IT122 dual transistors)
- Misc.
- ferrite bead x 1
- banana jacks, in (black) x 2
- audio jacks, 1/8" or tinijack, x 6