When you pull out that multimeter to measure resistance, you might give some thought as to whether you should use the meter’s two-wire or four-wire probably–if it even has a four-wire option. But you ...

Measuring the electrical resistance (ohms) of motors, compressors, and other electrical devices in HVAC systems may seem straightforward. But when the measurements of zero (0) or “OL” (overload) come ...

If you were to ask a random Hackaday reader what their most fundamental piece of electronic test equipment was, it’s likely that they would respond with “multimeter”. If you asked them to produce it, ...