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 ...

A specialized test gadget that tests continuity quantitatively in both AC and DC modes could prove to be an indispensible bench test instrument. This article describes such a continuity test set up, ...

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 ...

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

In more than 20 years of designing backup, disaster recovery, and business continuity systems for clients, there is factor which I have continually stressed. Testing, testing, and more testing; test ...

SIFMA issued the following statement from Tom Price, managing director and head of technology, operations and business continuity for SIFMA, on SIFMA’s October 15, 2022 industry-wide business ...