Recent content by Dosbomber1

  1. Dosbomber1

    mercury switch

    It's very hard to find Mercury in anything anymore. I believe the main reason for this is that it's so darn toxic. I looked for a long time for one for flip-sensors on some robots I was building, before breaking down and going to sciencelab.com to actually buy the stuff, then building my own...
  2. Dosbomber1

    Absolute Newbie needing help

    1)So far I've tried and failed twice to make a PCB for the programmer. Both attempts were with a sharpie and ferride chloride. I can't afford/find the supplies to the UV etching and I'm a little stumped on how to do it with my printer. Does anyone know of a method that uses an inkjet? Or...
  3. Dosbomber1

    Flashlight without batteries

    The UK magazine Everyday Practical Electronics (EPE), of March 2003, had an article on building your own LED flashlight powered by a few turns of a unipolar stepper motor you might want to look into if this is the sort of device you're looking to build. The magazine is available on the web...
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