While LCR meters are readily available at reasonable cost, they do not measure the Q of an inductor. This circuit enables you to measure the Q of inductors with the aid of an RF signal generator. A ...

Researchers have developed a simple, glucose-meter test that can help people monitor their own antibody levels against the SARS-CoV-2 virus, that causes COVID-19. The team from Johns Hopkins ...

The analog DC ammeter with an actual full-scale value of 10 milliamperes in your transmitter that measures 1 ampere of plate current has failed and the only linear meter that fits in the same space ...

Applications such as amplifiers, audio systems and ultrasound require precise phase measurements. This application note shows how to create a simple, low-cost phase meter that provides close to 1% ...

This simple circuit measures the strength of a radiated signal from a transmitter. It is commonly used by model airplane builders to check whether their transmitter are really transmitting the radio ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Answering a forum question the other day I was surfing around for the best price for an SPL meter ...

Now there is a simple, inexpensive yet accurate coffee moisture meter for green coffee beans and coffee parchment. Thanks to the project funded by the Philippine Council for Agriculture, Aquatic and ...