I can't embed this video for some particular reason, so here is a direct link:

 

https://www.youtube.com/watch?v=eMlImEE0bUU

 

As part of Project Rankin, I need to be able to convert 120VAC to a more usable 5VDC, so I'll be using a ubiquitous wall wart. However, I want to keep it as clean and tidy as possible, so I need to wire the adapter directly into the project itself. While I've got the case off, I'll walk through the basic components and how an AC adapter works.