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  1. PeterEFry

    Defeat an open collector sense line?

    Good points about the fuse and the resistor -- thanks. I have some 250mA fuses lying around for another project, but when I think about it, the 100 Ohm resistor yields a maximum 120mA on an open 12V line, which is the most I can have. So I threw it in, and got .3mA. Perfect. My ground points...
  2. PeterEFry

    Defeat an open collector sense line?

    Cheesy question: I have a network appliance with a 1U form factor power supply with a couple bad fans -- they rotate, but with excessive noise and vibration (it seems to be their normal mode, but it's hard to tell without samples for comparison). I would like to replace them -- in fact I have...

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