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DEC Computers
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DEC Computers
DEC (digital) MicroVAX /VAX / VAXserver 3100 Mod. 20 Restoration (PSU) - Part 2 [EN]
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DEC (digital) VAX 4000 Model 300 brought back to life - Power Supply (H7874) - Part 3

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DEC Computers

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Sun, 31 Mar 2024 00:00:00 GMT
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I brought the VAX / VAXserver 4000 Model 300 back to life. The issue with the Power Supply Unit should be solved. Part 1: https://www.youtube.com/watch?v=DQkXCuxtkqI Part 2: https://www.youtube.com/watch?v=cNPShHxAbvk German Version: https://www.youtube.com/watch?v=PxWny5116fU https://www.youtube.com/channel/UCR-DXc1voovS8nhAvccRZhg https://www.youtube.com/watch?v=M4604SvoyBc https://www.youtube.com/channel/UC5wOaN5FBlBf5ccO9zpI5Ag Blog-Entry: https://aaronsplace.co.uk/blog/2023-07-09-a-better-solution-to-the-vax-4000-power-supply.html Chapters: 0:00 Intro 0:34 Preface 5:53 Presentation of the PSU and First Attempt 13:23 Second Attempt (Capacitors) 15:57 Third Attempt (MOSFET) 17:15 Starting the Machine

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