[sdiy] LM13700 as VC resistor

[Didier Leplae]

I am curious to know anyone’s opinions on using the LM13700 as a voltage controlled resistor. 

The LM13700 datasheet has a couple schematics which I have tried building, with mixed results. I’m having a hard time knowing what sort of resistance I am getting as the multimeter gives strange and inconsistent readings.

The information on the datasheet is somewhat incomplete in my opinion and it is not easy to find much info online either.

It doesn’t seem like it is common practice to use these as VC resistors. Is that because it doesn’t work very well? Or use too many parts?

Any insight on this would be appreciated.
I’m interested mostly in the single ended schematic at the moment.

Thank you,

Didier