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The A-140 is a fast ADSR type envelope generator with both positive and inverted outputs as well as a retrigger input. The coarse time range of the A-140 can be selected from three settings by a rocker switch.
The A-140 features a gate input for starting the envelope as well as retrigger input fir immediate retriggering the envelope from the startpoint, no matter if the envelope cycle has been finished or not. A switch selects between three time ranges:
L = low. Intended for slow envelopes with long times
M = medium. The universal standard setting for most applications
H = high. Very short times, from ultra-short clicks to percussive envelopes
WIth a long trajectory building synths, MIDI keyboards and designing bespoke devices for music pioneers Kraftwerk, Dieter Doepfer decided to design his own modular synthesizer in 1995 based on existing electrical and mechanical specifications of lab equipment he used during his years at university. The official presentation of the system at 1996 Frankfurt Musikmesse caught everyone by surprise and created lots of interest. After Doepfer published the specifications on his website, many instrument designers and engineers saw the potential of the new Eurorack format. Doepfer continues expanding their catalog of over 200 modules (and counting), operating from their modest offices in the outskirts of Munich.
