A. F. BUBNS, in an article on testing of the crossbar system of telephony (Bell Lab. Rec., 20, No. 9 ; May, 1942), points out that in dialling systems a talking connexion is established through a ...

Ever wondered how pros test auto wiring without stripping wires? This Harbor Freight kit helps you do it, like they do, without zapping yourself.

This simple but clever continuity tester sports two LEDs: RED LED = circuit resistance is < approx 10K, GREEN LED = circuit resistance <10Ω. It consumes approx 8mA from a 9V battery. When not ...

Multimeters are indispensable tools when working on electronics. It’s almost impossible to build any but the most basic of circuits without one to test and troubleshoot potential issues, and they make ...

A printed circuit board turns separate parts into a stable system that powers up, talks to peripherals, and survives real ...

KCP&L and Westar Energy use ultrasound technology to locate poor-performing circuits. While providing reliable service to Kansas City Power & Light and Westar Energy customers is at the heart of ...

This paper reviews the use of the continuity correction with testing of statistical hypotheses involving a single degree of freedom. The appropriate choice of a correction for continuity depends on ...