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  1. S

    Building a replacement power supply

    Are you getting any voltage out at all ? even just 1 or 2 V on the 5V rail ? -- None how about the -5V rail ? -- None is there any voltage on the input pin of the 7905 regulator ? - a little but it seems to be jumpy I get a max of 2 volts Is the fuse on the primary side intact or...
  2. S

    Best book for beginners

    I'm in the US, what magazines would you recommend?
  3. S

    Building a replacement power supply

    Yes you are correct! I did try replacing the caps on two of them and it didn't work. The voltage at the top of the page is correct. The sticker on the power supply reads, +5.1V / 2.4A, -5 V / 0.5A THANK YOU for helping me with this!
  4. S

    Best book for beginners

    I am new to electronics but have always loved them. What is the BEST book I could read to learn electronics? Thank you for your opinions!
  5. S

    Building a replacement power supply

    I have three DS0-142L power supplies that aren't working. They are for a 16 port HP KVM and I can't find replacements. The issue is I'm new to electronics and I don't know how to troubleshoot this. I have given up troubleshooting them and would like to build a replacement. I have seen lots...
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