# Possible cs-80 filters? **URL:** \ **Category:** Uncategorized\ **Created:** [January 8, 2022, 4:08am UTC](https://lookmumnocomputer.discourse.group/t/possible-cs-80-filters/4472 "2022-01-08T04:08:35Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Jewceman1](https://avatars.discourse-cdn.com/v4/letter/j/b487fb/32.png) [@Jewceman1](https://lookmumnocomputer.discourse.group/u/Jewceman1)\ **Post date:** [January 8, 2022, 4:08am UTC](https://lookmumnocomputer.discourse.group/t/possible-cs-80-filters/4472/1 "2022-01-08T04:08:35Z")
Hey are there any filters that come close to sounding like a cs-80 filter? I know there are modules like the MOTM 480 and old crow modules, but I can’t seem to find a lot of available PCBs and the parts for them, and also the price is a little high, especially since I’m planning to buy a quantity of them. Any suggestions? ---
**Author:** ![CTorp](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/ctorp/32/15023_2.png) [@CTorp](https://lookmumnocomputer.discourse.group/u/CTorp)\ **Post date:** [January 8, 2022, 5:07am UTC](https://lookmumnocomputer.discourse.group/t/possible-cs-80-filters/4472/2 "2022-01-08T05:07:56Z")
> **[Shruthi CS80 Filter PCB](https://modularaddict.com/shruthi-cs80-filter-pcb)** > > The Old Crow CS80 filter PCB for the Shruthi. > This is a PCB only in a desktop/non-modular format. Why not try this? Make a Kosmo faceplate for it? Says in stock…$15 isn’t too bad Edit I guess if you needed a few that could add up quick ---
**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:** [January 8, 2022, 5:24am UTC](https://lookmumnocomputer.discourse.group/t/possible-cs-80-filters/4472/3 "2022-01-08T05:24:16Z")
It’s open source, repo here > **[GitHub - cs80/cs80\_shruthi: Eagle sch and brd for shruthi cs80 filter](https://github.com/cs80/cs80_shruthi)** > > Eagle sch and brd for shruthi cs80 filter. Contribute to cs80/cs80\_shruthi development by creating an account on GitHub. so if you wanted to do some modification of it you could start from that. ---
**Author:** ![CTorp](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/ctorp/32/15023_2.png) [@CTorp](https://lookmumnocomputer.discourse.group/u/CTorp)\ **Post date:** [January 8, 2022, 5:25am UTC](https://lookmumnocomputer.discourse.group/t/possible-cs-80-filters/4472/4 "2022-01-08T05:25:25Z")
What is special about the cs-80 filter? From what I gather it’s a two stage state variable ---
**Author:** ![Jewceman1](https://avatars.discourse-cdn.com/v4/letter/j/b487fb/32.png) [@Jewceman1](https://lookmumnocomputer.discourse.group/u/Jewceman1)\ **Post date:** [January 8, 2022, 7:38am UTC](https://lookmumnocomputer.discourse.group/t/possible-cs-80-filters/4472/5 "2022-01-08T07:38:49Z")
How would I be able to view the files and edit the pcb layout? I’m kind of familiar with designing and uploading designs on easyeda and pcbway, but not exactly with the files the github link has? ---
**Author:** ![jaradical](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/jaradical/32/12069_2.png) [@jaradical](https://lookmumnocomputer.discourse.group/u/jaradical)\ **Post date:** [January 8, 2022, 7:35pm UTC](https://lookmumnocomputer.discourse.group/t/possible-cs-80-filters/4472/6 "2022-01-08T19:35:16Z")
I think you’d need to be a little careful here - the filter cards are for the Shruthi - which doesn’t really follow eurorack/kosmo specs, and some communication may be digital from the Shruthi main card. The filter core, however, may be more or less easy to extract from the design…