V/Oct scaling with 566 VCO

[René Schmitz]

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.

Right I had to discover that not too long ago. :-(

Bye,
 René
 

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159