◊ Historic Buchla Synth Resources

We are fans of "west coast" synthesis, and specifically Serge and Buchla.

All PCBs are provided on an as-is basis for personal use only. Only PCBs are supplied; additional parts and assembly are required. These are minimally supported projects meant for experienced DIYers; you need to be able to read schematics, source parts, stuff and solder the boards, wire off-board components, troubleshoot, and figure out the mechanical aspects such as front panels and housing.

PCBs are $15.00@; ppd in the US, additional $10.00 postage/handling (per order) outside the US. Use the Paypal "Add to Cart" buttons to purchase. Make sure your shipping address is included in the paypal transaction.

coming soon: FPD panel designs for in buchla format...

Buchlaish PCBs


111 Ring Modulator

Discrete Ring Modulator, for bell tones and fans of Bebe Barron

All discrete ring mod based on the one half of the Buchla 111 circuit (original 111 was a dual; this PCB is for a single ring modulator).

$15.00


160 Noise Generator

Noise in two flavors: "Flat" and "1/f".

Noise Source based on the Buchla 160 circuit. Great paired with the 194 Band Pass filter

$15.00


194 Bandpass Filter

One input, four fixed-frequency filtered outputs.

All discrete transistor bandpass filter (not voltage controlled), based on the Buchla 194 circuit. One audio input, 4 filtered outputs: LP <200hz, BP 200-900hz, BP 900hz-4khz, and HP > 4khz. In conjunction w/ a 4-channel mixer, can be used as a comb filter or graphic EQ.

$15.00


208 Random

One clock input, each clock cycle generates 4 coordinated pseudo-random outputs.

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.

$15.00