◊ 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.

• Schematic: original (includes other circuitry); Scott Stites redraw
• Original forum discussion
• FPD front panel file (New!)

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