Joe’s Hobby Electronics

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Author: joe.farr@gmail.com

  • I’m really enjoying my new webhosting

    So, the bulk of my old website has been transferred to my new hosting platform. There are some articles and posts that I still need to transfer but they need work as I’m not very happy with how they were originally written and some of them have had upgrades and fixes applied so this needs…

  • Acorn System 1 Replica

    This was a mammoth project and isn’t actually finished although it does work. I’m not going into the background of the Acorn System 1 as those who know about this microcomputer are well aware of it’s history. Originally this rebuild project was a series of many blog entries describing how I got to a working…

  • Power Supplies 101 – Part 2

    In this set of articles, I’m going to be looking at mains powered linear power supplies (PSU’s) but before we start, a word of caution. You should already be aware that the domestic mains voltage, which ranges anywhere from around 110v to 250v AC depending on your country, is lethal and will kill you if you don’t show…

  • Power Supplies 101 – Part 1

    Safety and transformer basics In this set of articles, I’m going to be looking at mains powered linear power supplies (PSU’s) but before we start, a word of caution. You should already be aware that the domestic mains voltage, which ranges anywhere from around 90v to 250v or more depending on your country, is lethal and will kill…