--- In Doepfer_a100@yahoogroups.com , "waveform100" <googol@g...> wrote:

> I have the impression that the Morphing Filters VCA is pretty nice

and

> clean. I found a good (and expensive) VCA SSM-Chip on the PCB, but I
> have no idea if thats for the VCA or for the complex filter, without
> following the trace.
>
> So, what IC did Doepfer use on that VCA

hello,

looking at the a107 schematics, i'd say that it's the cem3379.
it is not only used as filter, it is also used as vca.

best wishes

ingo