Thread: multi 4 dummies
08-12-2009, 10:57 AM #1
- Join Date
- Dec 2005
multi 4 dummies
Just to ease the pain of self-proclaimed "electronic dummies" who ask tough questions regarding "how to wire a switch", here is a small gizmo that can tell you when a circuit is open or closed.
Actually, the best is a $20 multimeter but let's start with that.
You need a battery and a bulb , any battery, any bulb as long as the voltage of the battery is not higher than the voltage of the bulb, polarity is not an issue.
Test your contacts with A on one B on the other, if the bulb lights up circuit is closed, and vice versa.
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