freq. mult.

[Jon Darby]

That is seriously not a bad idea. You could synthesize even the function of
the bellows with a small air-driven generator giving you the control voltage
of the volume, and a keyboard juked from a Moog Rogue, if only Kraftwerk
were more influenced by polka early on! :)


-----Original Message-----
From: Scott Gravenhorst <music.maker at gte.net>
To: synth-diy at node12b53.a2000.nl <synth-diy at node12b53.a2000.nl>
Date: Tuesday, November 28, 2000 4:59 PM
Subject: Re: freq. mult.


><possibly silly mode>
>Hmm.  I'm conguring up an image of a 'synth-cordian', a
>device that uses a PLL to track a mono VCO and pop it's
>output up around 1 megahertz, this driving a TOG which
>is connected to a zillion buttons that select notes
>to mix into chords...  You play the VCO with one hand
>and the chord buttons with the other.  Heh, well at
>least you wouldn't have to pump it; or use the pumping
>action as a controller for portamento/VCF.  Polka?
></possibly silly mode>
>
>WeAreAs1 at aol.com wrote:
>>
>>In a message dated 11/28/00 7:25:27 AM, blacet at monitor.net writes:
>>
>><< The standard method of using a PLL such as a 4046 and a binary counter
>>works well if you get the filter right. See "The CMOS Cookbook" by Don
>>Lancaster. >>
>>
>>This has got me thinking...  Do you guys remember the old EML "Poly Box"?
It
>>had a little one-octave keyboard and an input for a monophonic VCO, and it
>>would allow you to play polyphonic chords that you could then send to your
>>monophonic synth's VCF and VCA.  Obviously, it had some kind of top-octave
>>divider in it.  But what I would like to know is:  Did it require the
input
>>of a very high frequency VCO (in order to put the top-octave divider's
output
>>in a useful octave range), or did it have some kind of frequency
multiplier
>>(PLL?) inside that allowed you to keep your monosynth VCO in a more
"normal"
>>octave range?  Have any of you guys ever owned or looked inside one of
those
>>Poly Boxes?
>>
>>Michael Bacich
>
>-- Scott Gravenhorst : On The Edge, but the Edge of What?
>-- Linux Rex, Linux Vobiscum  |  RedWebMail by RedStarWare
>-- FatMan: www.teklab.com/~chordman
>-- NonFatMan: members.xoom.com/_XMCM/chordman/index.html
>-- The 21st century does NOT start in the year 2000!!!
>