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AW: [Doepfer_a100] mixer and VCA Gain question

2008-04-28 by hardware@doepfer.de

> With regards to the VCAs (130-131) and Mixers offered by Doepfer,
> are these circuits all a Gain of 1?
>
> Or is there indeed the possibility of gain?
>
> Thanx,
>
> Tony

By default the max. gain is 1. But the VCAs can be modified so that they
amplify (one resistor has to be changed: R17 for both A-130 and A-131). But
with typical A-100 signal levels (e.g. from a VCO) you will reach clipping
very soon as the maximum output swing is about +/-10V with the 12V power
supply of the A-100.

Best regards
Dieter Doepfer

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