V/Oct scaling with 566 VCO

Scott Gravenhorst music.maker at gte.net
Sat Nov 18 18:19:47 CET 2000


=?iso-8859-1?Q?Ren=E9?= Schmitz <uzs159 at uni-bonn.de> wrote:
>At 00:42 08.11.00 -0800, theinmans at mindspring.com wrote:
>
>>If you want to search the archives for more info, the conversations 
>>about the chip took place about August 19th of 2000.  Of course, the 
>>chip was actually discussed a number of years ago.  See 6/29/1998 to 
>>7/01/1998 and again on 7/07/1998 when Rene Schmitz announced that he 
>>was posting a schematic showing how to use it as a wide-ranging VCO.  
>>I just tried that link.  Dead, alas.  Note as well that TH credits 
>>John Simonton for inverting the power supply to the 566, thus allowing 
>>its use as Mike has it drawn in the link above.  This, of course, 
>>makes this the most honest VCO ever drawn -- what with everybody 
>>thanking everybody else and almost no one claiming credit!
>
>Just for the record: 
>http://www.uni-bonn.de/~uzs159/vco566.html
>(Almost the same thing, and the roots are clearly traceable to John ;-)
>
>>I love this little chip.  I just had the silly thing on the
>>breadboard and was watching the signals on the oscilloscope 
>>while listening over the speakers an hour ago.  Fun stuff.  
>
>Plus it is really easy to build!
>
>>The chip is now obsolete, but is still readily available, albeit 
>>at increasing prices.

Yes, true, but available from whom?

>Right I had to discover that not too long ago. :-(
>
>Bye,
> René

-- Scott Gravenhorst : On The Edge, but the Edge of What?
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