# Jack sockets (as3340/cem3340 vco) **URL:** \ **Category:** DIY STUFF\ **Created:** [May 28, 2020, 2:16pm UTC](https://lookmumnocomputer.discourse.group/t/jack-sockets-as3340-cem3340-vco/1048 "2020-05-28T14:16:36Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\ **Post date:** [May 28, 2020, 3:13pm UTC](https://lookmumnocomputer.discourse.group/t/jack-sockets-as3340-cem3340-vco/1048/4 "2020-05-28T15:13:38Z")
> [@analogoutput](#): > > Also: Get a multimeter. You need one. What the man says! Recommendation thread: > [@Multimeter recommendation](https://lookmumnocomputer.discourse.group/t/multimeter-recommendation/716): > > Hey guys I’m building the mfos voltage quantizer, got it built and it’s working but I need to tune the voltage steps to be as close to 0.08333v apart as possible. My cheapo harbor freight $5 meter is not cutting it. There seems to be a vast gap between the cheapos and the $600+ Fluke meters. I’m a tool guy and take care of them so don’t mind getting quality that will last but that seems a bit much. What do you guys use? Or what would you get now If you needed a new one? As of now I’m leaning t… A quick tutorial by @caustic: > [@How to use a Multi-meter](https://lookmumnocomputer.discourse.group/t/how-to-use-a-multi-meter/852): > > Made a video explaining how to use a multi-meter for both continuity testing and voltage measurement. We have seen a few questions about this before, so i figured why not make a video. [[How to use a Multi-meter] ](https://www.youtube.com/watch?v=kYlt238MYW0) --- _[View the full topic](https://lookmumnocomputer.discourse.group/t/jack-sockets-as3340-cem3340-vco/1048)._