Meanwell industrial PSU on my Atari STFM motherboard.

Sponsored by https://www.pcbway.com Part of my STFM motherboard series. I've previously recapped my Falcon's PSU and installed a custom-designed Exxos PSU in my STE, so, to complete the set of obvious retro machine PSU upgrade options, today I modify a Meanwell industrial PSU for my STFM. I re-use the bracket from an old PSU, but find it hard to make the Meanwell fit accurately. Power switch and the IEC socket also have to be forgone. Better than using an unmaintained original? Yes. Better than a recapped original? No, but safer. Better than the Exxos supply? Not by any measure, unless you're really pushed for price.   / thetechnoshed   Meanwell terminal safety cover by zymurgic: https://www.thingiverse.com/thing:467... Video includes tracks "Going Bananas" and "Wakka Wakka" by Brian Teoh, who I thank very much for releasing his music into the public domain. PCBWay offer PCB manufacture, CNC machining, sheet metal fabrication, 3D printing and injection moulding: https://www.pcbway.com Check out their new price reduction on 4 and 6 layer boards here: https://www.pcbway.com/blog/News/Big_... 0:00 Introduction 2:52 The Meanwell NED-50A PSU 5:32 Removing the bracket from the old PSU 9:39 Dodgy switch 12:25 Mounting decisions 18:12 Extending the ST's power cable 20:24 PCBWay offer 21:14 Crimping terminals 27:49 The mains connection 35:15 Final assembly 38:40 3D printed terminal cover 40:15 Checking voltages 44:40 Powering up the STFM 45:27 Looking for ripple with the 'scope 49:13 Summing up: the Meanwell NED-50A References: DSTB1:    • DSTB1: 16MHz/8MB Atari ST accelerator. The...   PiStormST:    • PiStormST: building a debugging PCB & firs...   Dual TOS switcher for STFM:    • STFM Dual TOS: enabling AltRAM for DSTB1   Mandatory fix: bus pull-ups:    • Atari STFM bus pull-up resistor upgrade (M...   Exxos PSU:    • Upgrading my ST with an Exxos PSU (Mandato...   Falcon PSU recap:    • Atari Falcon PSU recapped and tested (Exxo...   UK Plugs (Tom Scott):    • British Plugs Are Better Than All Other Pl...   My STFM playlist:    • STFM   Exxos new-built replacement PSU: https://www.exxosforum.co.uk/atari/st...