> I loved the idea you had a few years back when you just released > the A143-9 Dieter.... > Making a new version as extension of that module. > What Happened to that idea? > > > grtz > > Ernst The idea is still the same, i.e. using an external quadrature oscillator for the frequency shift. But the new frequency shifter will be equipped with a squelch circuit (envelope follower and VCA) that suppresses the oscillator feedthrough when no signal is present. And we have also finished the development of the for a long time announced thru-zero-quadrature VCO and will present the module at NAMM in January. The module has a pure sine/cosine core and the waveforms are not derived from other signals (like sawtooth or triangle). Consequently the sine/cosine have a high quality with no overtones. It's not yet sure if it will be released as a single module (e.g. for the frequency shifter) or a dual thru-zero-quadrature VCO with voltage controlled FM indices (i.e. for each FM direction 1->2 and 2->1, also for cross modulation). But we will probably prefer the single version as not every user looks for a dual module. And the dual version can be simply realized by two of the modules and a dual VCA (e.g. A-132-3). Best wishes Dieter Doepfer
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AW: [Doepfer_a100] looking for A-126 frequency shifter
2014-10-09 by yahoo@doepfer.de
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