freq. mult.

[Scott Gravenhorst]

Ok, that was _possibly_ silly mode...  And I haven't had
any beer yet!  The more I think about this, the more I
see a use for a pile of small microswitches that I 
picked up at All Electronics.  

Speaking of purchases, I finally scored a few LM566 chips
at Electronix Express.

"Jon Darby" <jdarby at lplizard.com> wrote:
>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!!!
>>
>

-- 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!!!