Doepfer

hi group,

long time no see :) been busy emigrating to new zealand (and despite a pretty loud crashing falling-from-a-great-height noise, all modules are still working). anyone here from auckland?

but, to business:

will the diy synth vca work for control signals or only for audio? i'm thinking of wiring the whole "synth" as the filter of my dreams (without patch cables), and envelope controlled lfo depth is part of that.

i'd also be interested to know where in the circuit the resonance feedback is injected. that's probably one for dieter, or is the schematic out there somewhere?

thanks,

stuart

Hi Stuart

> anyone here from auckland?
David Bulog might be around here (though he is mostly an Roland addict). 
And you should not miss to get in touch with Murray from kiwitechnics.com

> will the diy synth vca work for control signals or only for audio? 
I don't know

> i'd also be interested to know where in the circuit the resonance feedback is injected.
That is described in the owners manual: JP2, the pin is described as 
"VCF RES IN".

> that's probably one for dieter, or is the schematic out there somewhere?
I'd be interested in the schematics too.

Florian

> hi group,
>
> long time no see :) been busy emigrating to new zealand (and
> despite a pretty loud crashing falling-from-a-great-height noise,
> all modules are still working). anyone here from auckland?
>
> but, to business:
>
> will the diy synth vca work for control signals or only for
> audio? i'm thinking of wiring the whole "synth" as the filter of
> my dreams (without patch cables), and envelope controlled lfo
> depth is part of that.
>
> i'd also be interested to know where in the circuit the resonance
> feedback is injected. that's probably one for dieter, or is the
> schematic out there somewhere?
>
> thanks,
>
> stuart

I'm back from the busy and exhausting Musikmesse :-)

The VCA of the DIY Synth is DC coupled. The feedback goes from the bandpass
output to the audio input (to the non-inverting input of the first
operational amplifier of the VCF circuit).

Best wishes
Dieter Doepfer