A series of teardowns of Big Blue's Power6 595 computer
In this video we'll look at the power supply that converts +350VDC to the 1.2v, 1.8v and 3.3v supplies that the memory and CPU core needs
https://en.wikipedia.org/wiki/POWER6
https://en.wikipedia.org/wiki/Buck_converter
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https://www.youtube.com/watch?v=SlsuxzVysMI
The second of the NAD duo. This is a viewer submitted stereo that needed some work. Sounds awesome now.
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https://www.youtube.com/watch?v=hkB3X_XshMI