# DIY Build CEM3340 (?) (Noob Question)

**URL:** <https://lookmumnocomputer.discourse.group/t/diy-build-cem3340-noob-question/1005>\
**Category:** KOSMO MODULES\
**Created:** [May 24, 2020, 8:23pm UTC](https://lookmumnocomputer.discourse.group/t/diy-build-cem3340-noob-question/1005 "2020-05-24T20:23:39Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [May 25, 2020, 7:41am UTC](https://lookmumnocomputer.discourse.group/t/diy-build-cem3340-noob-question/1005/20 "2020-05-25T07:41:32Z")

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See here for the exponential converter that’s mentioned briefly in the build document:

> [@Help: A Newbie's Drone Synth](https://lookmumnocomputer.discourse.group/t/help-a-newbies-drone-synth/292/25):
>
> The build instructions for that VCO mention an exponential converter but doesn’t explain how to build one. This article (by the same author) has the schematics: (Kristian Blasol of [Modular In A Week](https://www.youtube.com/playlist?list=PLyE56WXw0_5Q5QGMEXWmskuhojKyRdA3T) fame is currently live streaming a build of the AAC version, and I thought the schematics looked suspiciously similar grinning )

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