# Additive VCO with Arduino (Hagiwo)

**URL:** <https://lookmumnocomputer.discourse.group/t/additive-vco-with-arduino-hagiwo/3668>\
**Category:** DIY STUFF\
**Created:** [June 21, 2021, 9:36pm UTC](https://lookmumnocomputer.discourse.group/t/additive-vco-with-arduino-hagiwo/3668 "2021-06-21T21:36:14Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**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:** [October 27, 2021, 10:40am UTC](https://lookmumnocomputer.discourse.group/t/additive-vco-with-arduino-hagiwo/3668/5 "2021-10-27T10:40:55Z")

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I have a liitle problem with this build.

All works fine except when i plug a CV source in 1V/oct input jack.

there some little “clic” or “cric” on the sound (and for an ambiant module sound is not good at all 😒)

I tried differents CV source but allways the same “clic”

an idea someone ?

i precise that mine is build with a TL071

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