When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around ...

Thus, if you aren’t testing for weak capacitors, you aren’t doing your customer any favors. TESTING A RUN CAPACITOR. When testing a run capacitor, many techs pull the leads off and use the capacitance ...

If a technician does not have a capacitance meter, an analog ohmmeter can be used. However, this meter will only show if the capacitor is open or shorted. Below is a typical procedure used to test ...

Resistance meter testing. Capacitive charge test.A simple pass/fail test for a capacitor determines if it can develop a capacitive charge. Using an analog multimeter (preferred) set to the kilohms ...

A perfect capacitor will still read an “ESR” with this meter that is really the capacitive reactance Xc=1/(2 pi f C). As the author notes, ESR dominates for seriously bad capacitors.

It's true – the Mac LC III really did have it installed the wrong way round Did Apple really fit a capacitor backward on the Mac LC III? A multimeter-wielding retro fan has confirmed that, yes – ...

Powered by a 9V battery or an optional ac wall adapter, the Model 881 handheld tester can be used to measure the equivalent series resistance (ESR) of electrolytic capacitors in or out of circuit ...

Capacitors are checked using a capacitance meter. Turn the TV off and unplug the power cord from the socket. Because capacitors are designed to hold their charge, wait for ten minutes before ...

Aged capacitors and those batteries were replaced, and those edge connectors cleaned up again. The CPU board appears to have a Z80 at its heart, and we’re sure we spotted a 1987 date code.

Matching several capacitors, without needing a really precise value, can be accomplished with a "high-tech" laboratory capacitance meter. But this is cumbersome and overkill, and not everyone has ...