simple LFO question

[WeAreAs1 at aol.com]

In a message dated 6/20/00 12:25:39 PM, you wrote:

<<The Hypertriangular LFO design by Anderton was based on a Curtis CEM 3340
VCO chip -- I have the schematics;  could scan them & send them to you, but
you'd still have to get hold of one of those hard-to-find chips.>>

The way Craig's Hypertriangle works is that it simply feeds some of the 
triangle's output back into the LFO's CV input.  This causes the frequency of 
the LFO to modulate faster and slower as the triangle's amplitude goes up and 
down (or slower and faster, if you invert the CV before feeding it back.  I 
don't remember which way Craig said sounded better for flanging...)  At any 
rate, you could do this with any voltage-controlled LFO - you don't 
specifically have to use a CEM3340.

Michael Bacich