This announcement is a little early but .... :)

[Ric Miller]

I've come up with that which is, to me, a MAJOR upgrade to the VCOs that I
offer.  :)  I'm in the middle of updating my webpage at this very moment,
explaining the new function in my VCOs.  This is also becoming the first
'catalog' section, online, on my webpage.  I'll gradually be adding all of my
catalog information to my webpage, so that people can either view it online, or
order a catalog.  (I STILL haven't gotten my laser printer repaired, and I
still have to fill the 20+ catalog orders that I've received since the printer
broke down. This online version will help, once it's completed.)

The new upgrade that I've come up with for my Curtis 3340 based VCOs is
"Waveform Mixing", as I've just named it right now.  :)
My VCOs will all have rotary switches on them, that allow the following
functions:

- 4 position rotary switch #1, allows you to choose the Positive Voltage 1/2 of
the waveform from Sinewave, Sawtooth, Pulsewave #1 and Pulsewave #2.
- 4 position rotary switch #1, allows you to choose the Negative Voltage 1/2 of
the waveform from Sinewave, Sawtooth, Pulsewave #1 and Pulsewave #2.
- 4 position rotary switch #2, allows you to choose the Positive Voltage 1/2 of
the waveform from Triangle, Sawtooth, Pulsewave #1 and Pulsewave #2.
- 4 position rotary switch #2, allows you to choose the Negative Voltage 1/2 of
the waveform from Triangle, Sawtooth, Pulsewave #1 and Pulsewave #2.

Both of the waveform 1/2s from each of the rotary switch pairs, are mixed
together and output through each of the respective Waveform Jacks.

This function allows you, for example, to mix the Positive 1/2 transition of a
Sinewave, with the Negative 1/2 transition of a Pulse Width Waveform #1, whose
Pulsewidth is being modulated by an external voltage.
What do you have?  A Sine/PW waveform with modulation on the Pulse Width 1/2 of
the wave!  This opens up tons of new sound possibilities in the waveform!  :)

And it works WONDERFULLY!  I got my prototype up and running last night, and I
was absolutely in LOVE with the sound of it!  I thought it would be a VERY
subtle effect, but it's NOT.  It's new waveform sounds!  :)

Along with the suggestion today from customer Mike Dvorkin, I'll also be
including the original waveform output jacks for all 5 of the waveforms, as
well.  This will make for a LARGE module, with 14 pots/rotary switches, and 15
jacks.  It'll be taking up 2 rackspaces.  But for those that have rackspace, no
worry!  :)

There'll be samples of this VCO uploaded to my webpage, later this afternoon. 
Now, I'm getting back to working on the webpage addition.  There's part of it
up there already, along with the graphical layout image of the VCO.  (I still
have to add the 5 wave output jacks to the image, but there's enough there to
give you an idea so far.)

(http://www.pangea.ca/~rmiller/vco600.html)

And finally, yes, this function will work on any other VCO design.  I'll
finally be posting the schematic of this VCO, in coming days.

Ric

Aural Research Facilities - Samples of some modules are now available at:
http://www.pangea.ca/rmiller or http://www.pangea.ca/~rmiller
"When I was a kid, we had a quicksand box in the backyard.
I was an only child . . . eventually." - Stephen Wright