[sdiy] ASM-1 VCO: Sensitivity of linear FM Inputs?

[Magnus Danielson]

From: "Steve Ridley" <spr at spridley.freeserve.co.uk>
Subject: Re: [sdiy] ASM-1 VCO: Sensitivity of linear FM Inputs?
Date: Tue, 20 May 2003 23:32:30 +0100

> 
> > I happen to have the first Electronotes volume, and in there is the 258's
> > waveshape circuit, piece for piece, with a reference that that diagram was
> > from another publication, I believe EDN, originally published in the mid
> > sixties sometime.
> 
> Yes, that's right.  Fet sine shaper, From "Electronics" 1965.  Don
> used it in the older 158 VCO (1970?).  Appeared in Electronotes
> Volume 1 (1972).  Is nothing new in analogue electronics?

No. Most of the things is waaaay older than people imagine. People just don't
dig in the right places. Sure, there been some good innovations on the way,
but most pieces of the synth-alphabet is very old.

Cheers,
Magnus - who actually has *REAL* ringmods lying around