◊ PCB Documentation

☰ Buchla-based PCBs:

110 VC Gate

111 Ring Modulator

144 Square Wave Oscillator

158 Sine/Saw Oscillator

160 Noise Generator

180 AD Generator

194 Bandpass Filter

208 Random Voltage Generator

☰ SDIY/Workshop PCBs:

MicroMixer

Piezo PreAmp

Basic LFO

Fourses Tarp

Looney Board

40106 Oscillator Board

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.

PCBs are $25.00 @ — ORDER HERE

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

Notice

    The text, images, graphics, and other content of this website related to Don Buchla's legacy synthesizer designs is made available under the Fair Use Doctrine of the US Copyright Office. Fair Use limits the use of this information to personal, educational, and scholarly purposes (including right-to-repair, where applicable). It may not be used as the basis of commercial or for-profit works. Our Printed Circuit Boards may be purchased and assembled for your personal or educational use, but may not be manufactured and sold as "Buchla" products.