freq. mult.

[Scott Gravenhorst]

WHAT????  I did look in my neighborhood Shack, but they had none.

Of course, now that I've placed the order, I will go there
and find a 55 gallon drum full of them for pennies.

That and the AD654...

Murphy's law.

"Jon Darby" <jdarby at lplizard.com> wrote:
>Are the 566s that Radio Shack sells something to avoid? After the big 566
>VCO discussion a few weeks I went and ordered a few for later. I was
>expecting a $4.50 chip by the way everyone was talking but I believe it was
>only $1.50 or so. Why would I question such a deal, you tell me!
>
>Thanks a pantload,
>Jon Darby
>
>-----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 6:40 PM
>Subject: Re: freq. mult.
>
>
>>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!!!
>>
>

-- 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!!!