The Family Handyman on MSN

15 electrical mistakes homeowners make

They’re inexpensive and easy to use, and they help keep you safe when doing DIY electrical work. Solution: Test. Use. Verify.
Voltage testers are valuable tools for professionals and hobbyists who work with electrical systems. They are used to verify the presence or absence of voltage in electrical circuits, ensuring safety ...
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Combining Cor Van Rij's JFET test socket with two DMMs, a current limiter, switches and a wall wart yield a simple, accurate JFET tester.