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A179 Light control voltage source Module for converting different illumination intensities into corresponding
analog voltage and a gate signal derived from the analog voltage. A sensor converts the
illumination of the internal light sensor (light sensitive resistor / LDR) into a
corresponding analog control voltage.
The internal sensor is located at the front panel (int. LDR) of the
module but a remote sensor may be connected via cable to the module (jack: ext. LDR). Thus
the module A-179 is similar to the Theremin module A-178 but uses the
illumination intensity instead of the distance between hand and antenna for generating the
analog voltage.
Inputs: ext. sensor
Outputs: normal CV, inverse CV, Gate
Controls: Offset voltage (for adjusting the CV to 0V for the desired illumination), Gate
threshold
Displays: 2 LEDs for CV (positive/negative), 2 LEDs for inverse CV (positive/negative), 1
LED for Gate
Applications: controlling any voltage controlled parameter of the A-100, e.g. pitch or
pulswidth (VCO A-110), loudness (VCA- A-130/131/132), panorama (A-134), filter frequency
or resonance (A-120/121/122/123), phasing (A-125), frequency shift (A-126), resonance
peaks (A-127), envelope parameters (A-141/142), tempo (A-147), passive control by
covering/shading the sensor via hand or body, active control by using pocket
lamp/flashlight/laser, triggering of A-100 activities via gate with adjustable threshold,
e.g. starting an envelope (A-140/141/142), Start/Stop of a
sequence (A-155), any switching function (A-150/151).
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