[sdiy] Resonance before oscillation?

harrybissell at prodigy.net harrybissell at prodigy.net
Tue Feb 4 01:48:10 CET 2003

In theory the Mini Moog is an easy answer.

If the mini passband is 0dB... the self oscillation is the
same level.

As resonance increases... the peak level is constant.

H^) harry

>From: "Jim Johnson" 
>Subject: [sdiy] Resonance before oscillation?
>Date: Mon, 03 Feb 2003 16:09:31 -0800
>> Can anyone share with me, or point me to info on, resonance in DB vs. the
>> point of self-oscillation for comon analog filters - the Minimoog, MS-20,
>> etc.?
>This is a very tought thing to answer. You have things like clip and input
>signal level to deal with. The last part goes very quickly, so it is very hard
>to judge. Depending on how you look at it, it could be 12 dB, 24 dB or 50 dB.
>I think there needs to be some additional criteria to be added for a
>meaningfull answer to appear.

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