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"very rare Buchla 100 analog music synthesizer from the 1970 time frame. The analog sound is very rich and organic as a result of Don Buchla's innovative electronic circuit design that is largely based on discrete transistor circuitry. This raw organic sound quality when combined with the unusual control techniques is fundamental to the so called San Francisco West coast sound... This cabinet was part of a larger Buchla 100 system... Control voltages sources include a touch controlled voltage source, a 16 stage 3 output sequencer, a dual attack generator, envelope follower and timing source. External audio processing includes a dual microphone preamplifer, dual spring reverb and a very rare frequency shifter. Internal sound sources include sin, saw and squarewave oscillators and a white noise generator. The system includes several filters including the very rare and desirable 191 sharp cutoff filter.
Top row - 170 dual microphone preamplifier, 130 envelope detector, 185 frequency shifter, 190 dual reverb, 175 equalizer
Second row - 158 dual sine-sawtooth generator, 160 white noise generator, 106 six channel mixer, 191 sharp cutoff filter
Third row - 180 dual attack generator, 110 dual voltage controlled gate, 106 six channel mixer, 194 bandpass filter, 144 square wave generator
Fourth row - 140 timing pulse generator, 146 sequential voltage source
Fifth row - 112 touch controlled voltage source"
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