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Compact, analog Dual LFO, that is based on the A-147-2 VC-LFO. Doepfer’s A-147-4 has a wide frequency range, many waveforms, PWM...neat!
Although the A-147-4 is very compact, there are a lot of functions behind the 8TE wide front panel. The module outputs five different waveforms per LFO. Besides rising and falling sawtooth also sine, triangle and rectangle. Furthermore the rectangle can be modulated in width, from 0% to 100%! Besides the manual setting of the width of the rectangle, this parameter can of course also be modulated by CV. Just plug a cable into the CV input P, which turns the PW/PM control into an attenuator.
The CV input for the frequency tracks 1V/oct (up to about 2500Hz) as long as the attenuator for the CV is fully turned up. So with the Doepfer A-147-4 you also have a dual (utility-) VCO in your rack!
Switch CV Pol.: Polarity switch for control voltage, in center position the external control voltage is switched off
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.
