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How to Convert a Computer ATX Power Supply to a Lab Power Supply
  Posted by: AceBHound on Nov 6th, 2010 9:40 AM
If you're doing any form of electronics repair, a bench power supply is invaluable. It allows you to test a board on your work table instead of needing it to be hooked up in the cabinet or case with the manufacturer's power supply. There's a great article at Instructables on building your own bench power supply out of an ATX power supply.
Computer power supplies cost around US$30,but lab power supplies can run you $100 or more! By converting the cheap (free) ATX power supplies that can be found in any discarded computer, you can get a phenomenal lab power supply with huge current outputs, short circuit protection, and reasonably tight voltage regulation on the 5V line.

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