107

The Buchla 100 series' voltage controlled mixer (1960s), two panel units wide, drawn in its San Francisco Tape Music Center panel: "two 5-channel mixers with both separate and common outputs. Input levels are controlled by externally applied control voltages usually derived from a Model 114 touch controlled voltage source" (the 100 series catalogue). Ten signal inputs, each with a black control voltage input under it and a numbered knob; outputs 1-5, 6-10 and all, two of each. The knob marked 8 is drawn at zero, its index hidden on the photograph.

Key features

• Two five-channel mixers
• Each input's level set by a control voltage
• Separate outputs (1-5, 6-10) and common outputs (all), two of each