106

The Buchla 100 series' six channel mixer (1960s), drawn in its San Francisco Tape Music Center panel: "two 3-channel mixers with both separate and common outputs and level controls for each input" (the 100 series catalogue). Inputs 1 to 3 mix to the 1-3 output, 4 to 6 to the 4-6 output, all six to the two all outputs, each through its GAIN knob. The knob marked 3 is drawn at zero, its index hidden on the photograph.

Key features

• Two three-channel mixers
• Separate outputs (1-3, 4-6) and two common outputs (all)
• A gain knob per input