Four-Phase Systems - The Power Supply I tested, broke, then fixed.
The power supply when I got the IV/70 was anything but "ready to go". It was filthy. There was no documentation, its performance was marginal at best and finally I simply broke it because I didn't know what it was unhappy about. In this video I explain how this power supply being of a Linear design makes my life a lot easier than that of a more modern Switch Mode Power Supply, how I figured out what my problem(s) were and finally for the first time I test my repairs and see if it all works in the computer itself. (but with no boards installed, so I'll spoil that one right now) Remember to follow me on Bluesky at "@CelGen.org" to keep up to date on what I am doing and what might be happening in the next video.

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Project Four-Phase - What have I been doing for almost four years?

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Stanford Research Systems SR510 Lock-in Amplifier

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QuoTrek (and Signal) - Mobile Market Information From your Pocket.

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The 100,000 Horsepower Engine

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What Happened to Soviet Computing? Why Their Computer Industry Disappeared

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EEVblog 1752 - Texas Instruments SCREWED UP the NE5532!

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This Apple IIgs repair got really weird

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Milwaukee sealed this PCB in resin so you can't fix it . I did it anyway

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The 1.25V Trick That Gives You Any Voltage You Want

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WORM Media and the Sony WDD-931 - Optical Storage Goes Big

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Elektor - Variable Power Supply - July 1980 0-50V & 0-2A

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My New Capacitor Memory Card Works... Sort Of

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The 5XB now core dumps to the internet!

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Whitworths 1862 Slotting Machine

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Microsoft Just Released Their Own Linux Distro: Should You Be Worried?

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Switch Mode Power Supply Troubleshooting And Repair - Yaesu FT-1000MP

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The most used operating system in the world is not Linux

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VCF PNW 2026 - Sights, Sounds and Scenery

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The Multi-User Homebrew Computer Works!

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