/diy/ - Do It Yourself

>>1859697
Those transistors are integrated on the LM13700 die, they come with the OTA for free.

>5 resistors
Wow! Almost the exact same number of resistors as you'd need for any of these other VCR circuits which have worse linearity than the OTA based approach.

>what if you need 10
Resistors are cheap. The LM13700 is fairly cheap and comes with two OTAs per chip.
Also, if you need 10 fucking VCRs for a single circuit then you've done an awful job designing that circuit.
You usually only need one or two VCRs in key places, even when converting things which weren't meant to be voltage controlled in the first place.