Failures can occur in the electrical disconnect switches, fuses or circuit breakers that control, protect and isolate electrical equipment in electrical power systems, also known as switchgear. When a ...

The ZX-1 Heated Pentode™ refrigerant leak detector has a patent-pending microprocessor-controlled circuit, including constant battery and sensor condition detection. Features of the completely digital ...

An “Infinite Impedance Detector” might sound a little like something that [Zaphod Beeblebrox] would use to zip around the galaxy. It’s not, of course, but it is an interesting and useful demodulator ...