Wiardgroup

> section in the Borg is exponential and the Buchla lopass gate 
is linear.
> I don't really understand. I thought that the exponential behavior 
came
> from the Vactrol itself. Is that why the Buchla has that Zener? 
So there
> is a break point in a linear curve? 

Hi Mark,

This is what I have been dealing with in the Woggle Bug (same 
Vactrol control circuit). The Zener does produce a breakpoint so 
there is a two section curve. The problem was that the original 
circuit did not work well with Joysticks. Since the Joy Rider was 
one of the goals, I went with a traditional expo converter for the 
Borg which gives a very nice feel when controlled by a joystick. In 
the original circuit, all the action was bunched up at the top end. 

Also, I don't want to reissue the Buchla circuits. So you can say 
the Borg sounds more like a Buchla than anything else 
available, but is still unique - not a copy.