# Module requests **URL:** \ **Category:** KOSMO MODULES\ **Created:** [January 19, 2020, 2:35pm UTC](https://lookmumnocomputer.discourse.group/t/module-requests/39 "2020-01-19T14:35:13Z")\ **Posts on this page:** 1\ **Showing post:** 165
**Author:** ![WesleyV](https://avatars.discourse-cdn.com/v4/letter/w/bb73d2/32.png) [@WesleyV](https://lookmumnocomputer.discourse.group/u/WesleyV)\ **Post date:** [May 29, 2020, 11:09pm UTC](https://lookmumnocomputer.discourse.group/t/module-requests/39/165 "2020-05-29T23:09:49Z")
Hi Sam, Here is the Eurorack power I’m using: > **[Eurorack Power Supply - AI Synthesis](https://aisynthesis.com/product/eurorack-power-supply/)** > > An easy to build Eurorack Power Supply with convenient on-board connectors. The Build Guide is here. Each one I build has minute differences on the power rails, but mine are a smidge over 12v. That being said, my Midimuso actually wouldn’t track 1v per octave at first - I was having issues until I clipped out the LM317 and replaced it with a new one, and then things seemed to work fine. I worry though, since the midimuso apparently take 500 milliamps or something crazy - I’m worried I’m overtaxing my supply and I’m considering switching to a wall wart. One thing I noticed when trimming the voltage ref - I was able to expand the range of the voltage trimmer (and get close to 1v per octave) by decreasing the value of the 220r resistor connecting the Vout pin on the LM317 to pin 1 on the 5k trim pot. Be warned though, don’t go too low on that resistor or I’m pretty sure you will destroy the LM317. You could maybe take the 220r down to 100r or 75 in a pinch to squeeze yourself a bit closer to the desired voltage if you are getting like 10.5 instead of 10.6 on the test pad or something. Let me know how you fare! Another full disclosure, I am having some power issues which I described in this thread - hopefully they are not connected to the midimuso: > [@Too much in-rush current when starting up my modular?](https://lookmumnocomputer.discourse.group/t/too-much-in-rush-current-when-starting-up-my-modular/1068): > > Hi all, I’ve gotten some really great advice here so far, so I thought I’d seek further advice on some power issues with my modular. I have everything plugged into a single power strip, and when I flip the whole thing on, the 5v rails on my power supply work fine but the + - 12v rails aren’t giving off the voltage they need and the synth doesn’t properly power up (details of what kind of power supplies I’m using are below). I can mitigate this by plugging the wall warts in one at a time after f… best of luck, -Wes --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/module-requests/39)._