◊ PCB Documentation


208 Random CV Generator

Pseudo-random control-voltage generator, based on one section of the Buchla Music Easel. One clock input, 4 pseudo-random voltages out. Two CMOS chips & 2 LM3900s. Original circuit reconstruction by Scott Stites; original PCB by vtl5c3.

PCBs are $15.00 @ — ORDER HERE

Bill of Materials (value/qty)

  • Resistors
    • 1k x5
    • 68k x1
    • 82k x2
    • 100k x2
    • 150k x4
    • 330k x4
    • 680k x9
    • 1M x5
    • 2M2 x4
  • Capacitors
    • 22pf x1
    • 470pf x1
    • 0.01uf x5
    • 10uf electrolytic x2
  • Semiconductors
    • LM3900 x2
    • CD4015 x1
    • CD4016 x1
  • Misc.
    • Ferrite beads x2
    • .156" power header x1
    • in/out jacks x5

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.