Monthly Archives: March 2015

I’ve been having a hard time finding oscilloscopes and adjustable power supplies in the “hobbyist” price range, but I think I have cobbled together a solution.

A few key components:

• Power supply from old PC
  • Make sure to short the correct pins to trick the power supply into turning on.  This is usually green to black.
  • yellow-black is 12 V
  • red-black is 5 V
  • orange-black is 3.3 V
  • If you want other voltages, well..  time to built a buck-boost circuit!
• Gabotronics Xprotolab mini oscilloscope
  • 2MHz sampling
  • 8 bits resolution
  • $50 (the best part)

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