# Gain using the LM13700 **URL:** \ **Category:** DIY STUFF\ **Created:** [February 13, 2021, 10:59am UTC](https://lookmumnocomputer.discourse.group/t/gain-using-the-lm13700/2929 "2021-02-13T10:59:31Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Dud](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/dud/32/610_2.png) [@Dud](https://lookmumnocomputer.discourse.group/u/Dud)\ **Post date:** [February 13, 2021, 11:06am UTC](https://lookmumnocomputer.discourse.group/t/gain-using-the-lm13700/2929/2 "2021-02-13T11:06:57Z")
I don’t know if that’s can help you but look here > [@CV Pan: mono -\> stereo](https://lookmumnocomputer.discourse.group/t/cv-pan-mono-stereo/1415/16): > > Yeah, if that’s the case I’d tweak the input stage a bit, and also the output stage (make the 470k smaller and the 1k output resistor larger). Ignoring the input stage for a bit, here’s the VCA core with the OTA and the I-to-V converter: EDIT: The CV in this drawing is relative to the Iabc input potential, which is two diode drops above the negative supply, not 0 V, so with a 12 V supply the CV in the simplified circuit above is shifted by 10.6 V. The CV input circuitry needs to comp… --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/gain-using-the-lm13700/2929)._