AW: VC envelopes

[Haible Juergen]

	> Yes, or the preceding discrete circuit, as described in one of
	> the Synthesource issues.

I have the Synthesource issues which are included in Barry Klein's
Book (are these the complete ones, or are there others too ?).
I remember a discussion about the 3310, but I have to look for the 
discreet circuit again; don't remember this one.

	>> Special Award for "most different" VCADSR solution goes to
Roland's
	>> JP-4. Variable resistors are emulated by analogue switches and
smoothing
	>> capacitors, and each switch is controlled by a little expo VCO.
	>
	>Great! Never heard of such a design before.

There is a scan on the web; I think on Anders' site.
The envelopes are a little staircase-like (I don't know how large
the steps are, but I never heard anybody complain about it),
but they are pretty fast (3ms if memory serves).

JH.