# Cooling Case Fans to keep VCOs in tune?

**URL:** <https://lookmumnocomputer.discourse.group/t/cooling-case-fans-to-keep-vcos-in-tune/3866>\
**Category:** KOSMO MODULES\
**Created:** [August 7, 2021, 7:39pm UTC](https://lookmumnocomputer.discourse.group/t/cooling-case-fans-to-keep-vcos-in-tune/3866 "2021-08-07T19:39:06Z")\
**Posts on this page:** 1\
**Showing post:** 18

<div class="post-metadata">

**Author:** ![Hlywd](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/hlywd/32/15272_2.png) [@Hlywd](https://lookmumnocomputer.discourse.group/u/Hlywd)\
**Post date:** [August 8, 2021, 2:50am UTC](https://lookmumnocomputer.discourse.group/t/cooling-case-fans-to-keep-vcos-in-tune/3866/18 "2021-08-08T02:50:27Z")

</div>

Also if its any useful info i have done this

> [@1222 Tuner VCO Module fixes/improvements](https://lookmumnocomputer.discourse.group/t/1222-tuner-vco-module-fixes-improvements/2072/1):
>
> add a 10M between pins 4&5 of the 3340 to reduce the ringing on the square out.

---

_[View the full topic](https://lookmumnocomputer.discourse.group/t/cooling-case-fans-to-keep-vcos-in-tune/3866)._