# Lunetta Synth - CMOS and Modular Discussion **URL:** \ **Category:** DIY STUFF\ **Created:** [February 25, 2021, 2:09am UTC](https://lookmumnocomputer.discourse.group/t/lunetta-synth-cmos-and-modular-discussion/3025 "2021-02-25T02:09:21Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![analogoutput](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/analogoutput/32/29663_2.png) [@analogoutput](https://lookmumnocomputer.discourse.group/u/analogoutput)\ **Post date:** [February 28, 2021, 1:06pm UTC](https://lookmumnocomputer.discourse.group/t/lunetta-synth-cmos-and-modular-discussion/3025/5 "2021-02-28T13:06:11Z")
I would not want to hold my work up as a good example of CMOS design, but I haven’t had trouble with it: > [@AO Noise Bells ,,,,,,,,,,,,,,,](https://lookmumnocomputer.discourse.group/t/ao-noise-bells/2301): > > This is a percussion and drone synth module based on ideas presented in the 2015 Hackaday article “[Logic noise: More CMOS cowbell!](https://hackaday.com/2015/04/10/logic-noise-more-cmos-cowbell/)” by Elliot Williams. (See also [Cmos noise bell](https://lookmumnocomputer.discourse.group/t/cmos-noise-bell/1103) .) The PCB and front panel are Kosmo format but the same circuit could be implemented in Eurorack format, or other ±12V formats, with no changes other than PCB, panel, and jack dimensions. The module consists of two separate sections. One is a 2-oscillator circuit based on the “cowbell” section of the Hacka… --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/lunetta-synth-cmos-and-modular-discussion/3025)._