[sdiy] LM13700 single supply?

[Paul Perry]

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?