Welcome to the online resource for the Buchla 100 modular music system. Designed by Donald Buchla in the 60’s for the San Fransisco Tape Music Center to replace their ageing equipment which were described as ”…ingenious application of surplus equipment that saw service in World War II bombers…”. The basic objectives were to …
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Technical Specifications
The 100 series are made out of modules which are 7″ high and 4.25″ (or any integral thereof) wide. The system employs three varieties of signals, each with a distinctly different function : Audio signals, the raw material of electronic music, are formed by various sorts of generators (sine, square, sawtooth, harmonic) or are produced externally …
Modules
All known modules are presented with text from the 1968 catalog. Price from the same catalog with the price in brackets are adjusted for inflation (2018). Images of some modules are missing: 117 because it’s unknown what it looked like (The 157 was listed before, but I have received a picture of it since, so …
My Own Modules
I’ve designed and built two modules to fit the 100-series. They’re both built using only resistors, capacitors, and transistors in the spirit of the older modules. [fullscreen][/fullscreen] MODEL 154 — DUAL COMPARATOR Two control voltage inputs are compared against each other. If respective input value is larger than the other, the corresponding pulse output …
Thanks to Adam, Daniel, Mike, Mark and the other people who’ve helped out along the way.