[sdiy] Moog ladder filter with resonance compensation schematic

[Michael Bachman]

What I have seen is to mix a bit of the input, though a simple 1 pole
HP filter into the resonance feedback.  I've done this on a 4 pole
cascaded OTA design and it works pretty well.  It gave me back 3-4V of
the output voltage drop that happens near full resonance.

Here's my schematic.
http://www.flickr.com/photos/96442572@N07/12771024023/

On Tue, Feb 25, 2014 at 4:27 AM, Mattias Rickardsson <mr at analogue.org> wrote:
> I guess the resonance feedback signal is mixed into the output,
> raising it a bit as the resonance is raised?
> I don't have the exact schematics though, sorry.
>
> /mr
>
>
> On 24 February 2014 20:04, Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:
>> Hi list,
>>
>> I remember seeing a Moog ladder filter with resonance compensation
>> schematic somewhere but can't remember where..
>> You know the type of schematic with compensation
>> to keep the signal from droping when lowpass resonance is crancked up..
>>
>> Many thanks.
>> JP
>>
>>
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