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"Rare Buchla Original Frequency Quad Spatial Director Model 204.
Historical Vintage Series 200 Synth System.
Dimensions approx. 8.5" x 7" x 3"
Voltage controlled quadraphonic distributor for determining the spatial location of sounds with pan pots or externally applied voltages. Monitor switches and voltage controlled attenuators are included.
The 204s features include:
4 electronically isolated 2-dimensional joysticks with output voltages proportional to lateral and vertical displacement. Generally used to control sound location, but may be used to control other parameters.
4 gain controls for signals applied to inputs. Control voltages may alternatively be used to control amplitude.
Control voltage inputs for defining positions of sounds. Increasing voltages move sounds from rear to front and from left to right. Voltages are generally (but not necessarily) derived from adjacent joystick outputs.
Monitor switches for use in conjunction with the Model 226 Quad Monitor Interface.
http://www.buchla.com/historical/b200/204-spatialdirector.htm"
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