Using an Oscilloscope | Make:
Ever wonder what an Oscilloscope is? Or how to use one? Here's a good guide on getting starting "An oscilloscope is easily the most useful instrument available for testing circuits because it allows you to see the signals at different points in the circuit. The best way of investigating an electronic system is to monitor signals at the input and output of each system block, checking that each block is operating as expected and is correctly linked to the next. With a little practice, you will be able to find and correct faults quickly and accurately." Link.
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