# PCB Golf - Most useful core module in 100mm x 150mm **URL:** \ **Category:** DIY STUFF\ **Created:** [June 30, 2021, 2:07pm UTC](https://lookmumnocomputer.discourse.group/t/pcb-golf-most-useful-core-module-in-100mm-x-150mm/3722 "2021-06-30T14:07:35Z")\ **Posts on this page:** 1\ **Showing post:** 48
**Author:** ![BlackDeath](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/blackdeath/32/7644_2.png) [@BlackDeath](https://lookmumnocomputer.discourse.group/u/BlackDeath)\ **Post date:** [July 20, 2021, 11:26pm UTC](https://lookmumnocomputer.discourse.group/t/pcb-golf-most-useful-core-module-in-100mm-x-150mm/3722/48 "2021-07-20T23:26:40Z")
![Screen Shot 2021-07-20 at 7.21.03 PM](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/6/6bca0c76bf0df97aa51c40b53817a0bea022b7c8.png) ![Screen Shot 2021-07-20 at 7.22.19 PM](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/5/53da6fd9b93339a603ffb7723c4c9380d5ad4366.png) ![Screen Shot 2021-07-20 at 7.22.36 PM](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/c/c71bda03e39757b17395f4582257fe5b4dfde178.png) Number 3! FZEQ, a 3-band equalizer and fuzz. I found the schematic on a random polish guitar website and have no idea if it works, but I’m willing to give it a shot. This is 25x100mm, so should make a 2.5cm Kosmo module and be small enough to be made as the super cheap JLCPCB “prototype” boards. The layout is pretty ugly but I got fed up with rerouting, so it is what it is. I don’t think I can make them much denser than this. I also made a Rev 0.2 of the FWR since I realized I made a big mistake right after I sent it off to the printers… --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/pcb-golf-most-useful-core-module-in-100mm-x-150mm/3722)._