[sdiy] LM13700 single supply?

[Scott Gravenhorst]

flightofharmony at comcast.net wrote:
>Instead of trying to explain the circuit I have posted the 
>schematic and accompanying text on my site here: 
>http://www.flightofharmony.com/VCO.html 

Interesting circuit.  I think that a 7555 will work better in place of the 555.

>(I don't know if this is kosher, so the page will be deleted 
>tonight. Please don't sue me Mr. Jung!) 
>
>~flight
>
>p.s. - this is send attempt #2, Outlook and SDIY just don't get along...
>
>-----Original Message-----
>From: synth-diy-bounces at dropmix.xs4all.nl 
>[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Paul 
>Perry Sent: Friday, June 15, 2007 8:44 AM To: 
>Synth-diy at dropmix.xs4all.nl Subject: RE: [sdiy] LM13700 single 
>supply? 
>
>Infuriatingly, I only have the 1st ed of Jung's 555 book - and it doesn't
>have this.
>
>But, unless he is doing something exotic with the 3080 (as in that notorious
>VCA) then the 3080 can be replaced by half a 13700.
>
>Can you say what is happening in the circuit?
>
>Paul Perry Melbourne Australia 
>
>-----Original Message-----
>>I am experimenting with the exponential VCO from Walter Jung's IC Timer
>>Cookbook 2nd ed., p. 239.  I want to use an LM13700 in place of the CA3080,
>>but he has this circuit set up for single-supply. Can the LM13700 be used
>>this way? 
>
>
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-- ScottG

-------------------------------------------------------------

-- Scott Gravenhorst
-- GateMan I - Xilinx Spartan-3E Based MIDI Synthesizer
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