[sdiy] Moog ladder high pass

[Sean Ellis]

I found this circuit but I know its easier than adding an inverting 
amp/buffer.
http://www5b.biglobe.ne.jp/%7Ehoushu/synth/Vcfv0212.GIF
I did it by only adding a few components and moving the input, in a few 
weeks when my gear arrives I can trace the exact method I used.

----- Original Message ----- 
From: "Sean Ellis" <tensiontype at hotmail.com>
To: "synth-diy" <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, December 29, 2007 10:59 AM
Subject: [sdiy] Moog ladder high pass


> Some time ago instructions were posted on this list to add a HP input to 
> the moog ladder (done by Tom Gamble I think), I added this to one of my 
> desktop synths and it was great. Does anyone know where the original 
> discussion (or the input itself) is located? From looking at the circuit I 
> would guess it involves lifting the cap at the base of the ladder from 
> ground and going in there but I dont have any gear here to test.
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