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doepfer
a-163 voltage controlled frequency divider
price : $110.00
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module a-163 is a voltage controlled audio frequency divider. the frequency of the input signal (preferably the rectangle output of a vco) is divided by an integer factor n (n = 1,
2, 3, 4 ... up to about 20). n can be adjusted manually and modulated with an external control voltage (e.g. from lfo, adsr, random, midi-to-cv, theremin, light-to-cv, analog
sequencer) with attenuator. the control input has polarizing function, i.e. the manually adjusted dividing factor can be modulated upwards or downwards. the basic idea of a
polarizer is described in the modules a-133 voltage controlled polarizer and a-138c polarizing mixer.
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the output waveform is rectangle with 50% duty cycle. unlike the a-115 with fixed dividing factors (2, 4, 8, 16) the dividing factor of the a-163 is voltage
controlled and can be any integer value between 1 and about 20 (but only one output). in contrast to the a-113 the dividing factor of the a-163 is voltage
controlled and the output waveform is rectangle (the a-113 has 4 sawtooth outputs with 4 adjustable but not voltage controlled dividers).
applications: dynamic voltage controlled frequency division of audio signals or modulation signals. more details concerning frequency
division of audio signals can be found in the trautonium or a-113 information.
inputs: cv in, audio in (rectangle)
output: audio out (resp. rectangle modulation cv out after modification)
controls: manual n, cv attenuator
after a small modification (a capacitor has to be shortened or replaced by a wire for dc coupling) the a-163 can be used for low-frequency control signals too.
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this module has a maximum current draw of 50ma. it requires 8 te/hp worth of space to fit in a eurorack frame.
to view this module's user manual as a pdf file, please click here.
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