[sdiy] Can I use an LM13600 in place of an LM13700 ?

[Scott Bernardi]

The only real difference between the LM13700 and LM13600 is the output buffer
stage; I believe the LM13600 buffer's bias current varies with Iabc, while it
is constant on the LM13700. You should be able to substitute no problem,
especially if you are running the output currents into opamps.

TooManySynths wrote:

> I'm thinking of adding arron cram's Portamentiometer,
> a neat combination vc portamento and LFO, to my panel.
> I have an unused section with four jack holes and a
> pot. If I replace one of the jacks with a switch it
> will work just fine.  Arron's circuit uses an LM13700,
> but I only have LM13600s.  Since I don't want to make
> a parts order for one OTA, I was hoping to substitute.
> It does not appear at first glance that the additional
> features of the LM13700 will make any difference.
>
> The other candidate for the same space, is Jurgen's
> combination sample and hold, glide, glide and hold,
> which will also fit if I leave off the output level
> adjust control.
>
> Opinions ?
>
> Thanks
> Daryl
>
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--
Scott Bernardi
sbernardi at home.net