# My build progress

**URL:** <https://lookmumnocomputer.discourse.group/t/my-build-progress/345>\
**Category:** DIY STUFF\
**Created:** [March 1, 2020, 8:57pm UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345 "2020-03-01T20:57:53Z")\
**Posts on this page:** 1\
**Showing post:** 3218

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**Author:** ![saint\_et\_moudulard](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/saint_et_moudulard/32/12683_2.png) [@saint\_et\_moudulard](https://lookmumnocomputer.discourse.group/u/saint_et_moudulard)\
**Post date:** [April 30, 2021, 10:08am UTC](https://lookmumnocomputer.discourse.group/t/my-build-progress/345/3218 "2021-04-30T10:08:58Z")

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Hey circuits’s burners,  
here are my last constructions:

- the CMOS noise bell from the “logic noise” serie on Hackaday:

 ![saint_et_moudulard-post-2021_04_30_07_12](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/4/45a99765d7321d220ab47937457bce5f9f93ebf1.jpeg)

I have add a CV control with a vactrol fixed on the decay pot pins, and it working enough good ! I have also add a passive volume control at the audio output. Really funny circuit ! 🙂

[![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/8/866645ef5edaf52ebe7f63d527af656f5dd2c270.jpeg "CMOS metallic Noise Bell") ](https://www.youtube.com/watch?v=KowT2JOtAfM)

[![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/c/ce7363f8e63e7ae70ad0ac154bbd1ea8da4761fe.jpeg "CMOS metallic noise bell") ](https://www.youtube.com/watch?v=8I-WNDGkiLE)

- A simple white noise generator with differents filtering mod to create some colored noises.

 ![IMG_20210430_121508](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/b/bd75d85546c453bd29e893cd4f2bd2c7bc44fb63.jpeg)

 ![IMG_20210430_121535](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/1/19af369901038d624f6aaf2782a3eae6a7e8512a.jpeg)

- my proto of an adjustable Tom/Conga drum module with a integrated delay effect for create really nice beats or bleep&bloops sounds and other organic noises with the CV control:

 ![IMG_20210430_121522](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/f/f5b89d0531e17eeda33711d963d269158f036f6c.jpeg)

More details here:

> [@Tom drum module with integrated echo](https://lookmumnocomputer.discourse.group/t/tom-drum-module-with-integrated-echo/3413):
>
> Hey folks, At the moment I am working on my rack dedicated to percussive/drum elements. I builded a simple adjustable tom sound circuit that I found here:[http://www.modularsynth.ru/endiy/adjustable\_tom/](http://www.modularsynth.ru/endiy/adjustable_tom/) I stuck an echo / delay effect on it output and I found the result so fun that I decided to make an original module out of it. I used and I modified the famous Chinese kit with pt2399 (available on aliexpress, eBay, etv …), in particular by adding a CV input for a control of the delay time. He…

Have a nice and lucky day !!

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