Buchla Module Builds

I own only a few Buchla format modules so I do builds and repairsfor others.  I did build the Buchla 266 Source Of Uncertainty and the Pulser, Cross Fader, and Timbre generator functions in 5U format modules for my system with modifications for MOTM-signal levels.  I also have my own 208 Music Easel and built a pair of cabinets for my other Buchla modules.  There is good historic Buchla reference material at www.fluxmonkey.com/historicBuchla/BuchlaIndex.htm

Buchla Wood Cabinets


The following links are pages for Buchla format modules with my photos, build tips, and calibration procedure since the documentation can be rather sparse.

25S Analogue Waveform Generator V1 and V2


102 Stereo Locator

140 Timing Pulse Generator

144 Dual Square Wave Generator

158 Dual Sine-Sawtooth Generator

204 Quad Spatial Director


205 Dual Matrix Mixer  New

207 V2 Mixer/Preamp


208 V1 Stored Program Sound Source

208 V2 Stored Program Sound Source

208 V2.1 black version Stored Program Sound Source


Boops Card12 Replacement  New

Portabellabz perfBOB  New

Portabellabz VCS3 Card  New


208 Stored Program Sound Source 1973/74 Early Version

Music Easel Manual 1974   

A scan of the manual

Music Easel Manual 1974   

A better color scan of the manual contributed by Luther R.


211 Power Supply


212 Dodeca Module

216 Touch Controlled Voltage Source


218 V1 and V2 Touch Activated Voltage Source


221 Kinesthetic Input Port


227 System Interface V1 &V2

244 CV Toolbox


245 Sequential Voltage Source

246 Sequential Voltage Source  New


248 'MARF' Multiple Arbitrary Function Generator V1 & V2 and Expansion


256 Dual Control Voltage Processor

257 Control Voltage Processor

258 Dual Oscillator V1, V2, & V3

259 Complex Wave Generator V1 & V2

265 Source Of Uncertainty


266 Source Of Uncertainty

275 Dual Equalizer/Reverb  New

277 Signal Delay Unit V1 & V2

280 Quad Envelope Generator  New


281 Quad Function Generator

284 Quad Voltage Controlled Envelope Generator

285 Frequency Shifter (Spin FV-1 version)

285 Frequency Shifter V2


285 Frequency Shifter 1977 Early Version


289 Dual Defect Processor

291 Voltage Controlled Filter

292C Quad Low Pass Gate V1 & V3

294 Four Channel Comb Filter

296 Programmable Spectral Processor


Other Buchla format modules

259C Dual VCO


Syntron Syrinx Filter Set Model 323


RSF Kobol Expander Dual VCO

402 Quad Dual LFO

Vedic Scapes "Blacet" Time Machine

Custom 24 dB VCF and Clock