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Manufacturer Description:

module a-140 is an envelope generator, and, since it puts out control
voltages, counts as one of the modulation devices in a modular system.
as soon as the gate input receives sufficient voltage, the adsr
generates a variable voltage, changing in time, called an envelope. this
varying voltage is output in normal (positive) and inverted form, and
can be used, eg., for voltage controlled modulation of a vco, vcf, or
vca, or for processing other modules' inputs and outputs.

the shape of the envelope is governed by four parameters: attack, decay, sustain and release.

the envelope is started (triggered) by a gate signal either from the
int.gate voltage on the system bus, or, if a signal is put into it, from
the gate input socket.

the envelope can also be re-triggered, ie. start from scratch again,
each time a trigger signal is sensed at the retrig. input socket, when
the gate is still open.

in combination with the comparator module a-167 a free-running "adsr-lfo" can be realized.

related modules are the 4-fold adsr a-143-2, the voltage controlled adsr
a-141 and the voltage controlled decay/gate module a-142.

this module has a maximum current draw of 20ma. it requires 8 te/hp worth of space to fit in a eurorack frame.