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Doepfer A-140-1 Eurorack Envelope Generator Module (Silver)

£72.00 inc. UK VAT

£60.00 ex. VAT

In stock (can be backordered)

(Bear in mind prices on the UK site are shown including UK VAT. After entering your shipping address at checkout prices will update to show the correct taxes due to us based on your location. If purchasing internationally, VAT, handling fees, and import duties will potentially be due on delivery)





Product Info


Module A-140-1 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.

Module A-140 has available a three-position toggle switch to select one of three time ranges. The time ratios for the three ranges are about 1 : 20 : 1000. The absolute Attack times are about:

20uS … 100ms (switch position L)
400uS … 2s (switch position M)
20ms … 120s (switch position H)

The Decay and Release times are about 3-4 times more. Because of the exponential slope and the gradual asymptotic approach to the zero level the exact specification of the decay and reales times is a bit difficult.

The voltage ranges of the ADSR outputs are about 0 … +8V for the two normal outputs and 0 … -8V for the inverted output.

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-141-2 and the voltage controlled Decay/Gate module A-142-1.

Specifications
Width: 8hp
Depth: 50mm
Power: +20mA, -20mA

Manufacturer product page here.
Product manual here.





Free Delivery for UK orders over £99

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