[sdiy] Yves Usson's Minimoog Filter

brianw brianw at audiobanshee.com
Sun Jun 11 23:03:49 CEST 2023



On Jun 11, 2023, at 1:57 PM, Florian Anwander wrote:
> Hi
> 
> Am 10.06.23 um 09:37 schrieb Ben Bradley via Synth-diy:
>> I recall part of the filter's sound has to do with the input being slightly or moderately
>> overdriven (with the Minimoog mixer level at full volume),
> 
> I think the most important part is: the mixer in the Minimoog is basically a passive mixer, and the "lower" transistor pair of the filter acts also as summing stage for the mixer.
> 
> Florian

Ah! This explains why the AJH Synth "mini mod" transistor ladder filter has a 3-input mixer capability. I just thought it was convenient...

AJH Synth also have an optional remote switch to kick the mixer stage into high gain, making overdrive much easier to attain.

Brian




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