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Doepfer

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Re: [Doepfer_a100] A-105 VCF problem

2014-06-12 by achtung_999

"while he states, that he is using
a triangle from the A-145."

Sorry to intervene but he said he uses the sine from the A145.
Interesting problem though...


On Thu, Jun 12, 2014 at 11:23 AM, Florian Anwander fanwander@mnet-online.de [Doepfer_a100] <Doepfer_a100@yahoogroups.com> wrote:
Hi Dieter

Am 12.06.2014 10:48, schrieb yahoo@doepfer.de [Doepfer_a100]:
> So if the click is
> about -35dB compared to the full signal it's probably the control voltage
> feedthrough.
Listen to the soundcloud example, there is no audiosignal at all.

But the soundexample is indeed quite "funny", because the modulation
sounds like an asymmetric pulse wave - while he states, that he is using
a triangle from the A-145.

@isoldeisobelle:

Can you turn up the resonance so we can hear whether it is in fact a
sine, which is doing the modulation.

Maybe it is not the 105 which is broken, but the A-145 (I don't have the
schematics here, so I don't know whether some broken OpAmp in the sine
out could act as an comparator).

Florian


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