If you need just a picture of the whole amp, buy a Kill-A-Watt ... But even with those meters, you can't apply a simple formula like P=E squared over R and get a useful power measurement.

Tracing the pins, the corrosion put a resistor between two pins of an op-amp. The only remaining problem was the milliamp scale, but that was a simple blown ... you’d fix a meter when you ...

The folks at [electro-labs] designed this simple USB power meter which does just that ... amplified by the LT6106 a high side current sense amplifier before being fed to the 10 bit analog port ...

The meter coil has its own tempco of +3930 ppm/°C, which is also simulated here though it makes little practical difference. Just as well: might be tricky to keep it isothermal with the other ...

Direct debit payers, on a fixed rate, may have extra credit (built up during the summer months) to tap into whilst those on pay-as-you-go meters will start to send more cash over, nonetheless ...

I have a cheap multi-meter I bought from Parts Express years back, but figured it'd work for this job, it all seemed so simple. Since the amp location is in a tight space, I elongated each multi ...

This application note shows how to create a simple, low-cost phase meter that provides close to 1% accuracy. To view the application note, click on the Applications such as amplifiers, audio ...

A SIMPLE tool can check if you'll be impacted by a huge electricity meter switch off in just a few weeks' time. The switching off of services powering Radio Teleswitch Service (RTS) meters ...

Most prior estimates have involved simple mathematical extensions of the world record improvement rate for 100 meters. However, Australian physiologist and coach Jeremy Richmond takes a different ...