Not a clue. I don't have a 500. But, the 400 filter uses that
board.
Look for a 15K resistor connected to the top of the Q
slider.
That 15K resistor connects to the input of a 748 quad op amp,
two 100K resistors and a 3.3pF cap.
The 100K resistor in parallel with the 3.3pF cap is the
feedback limiting resistor from the LP output back to the network
input.
Reduce the 100K.
From: emlsynth@yahoogroups.com [mailto:emlsynth@yahoogroups.com] On Behalf Of bill bigrig
Sent: Wednesday, November 02, 2011 10:10 AM
To: emlsynth@yahoogroups.com
Subject: RE: [emlsynth] Re: EML500 filter resonance
Ressistance in the feed back path eh? Any hints what components that resistor would be between?rig