Valencia, Calif.-based Active Thermal Management (ATM) offers a complete line of rack-cooling solutions for residential and commercial electronics installations. Adding to its line of fans, speed ...

WHEN the temperature during an industrial process must be kept constant it is more economical to do it automatically than by hand, and in a thirty-page pamphlet issued by Messrs. Negretti and Zambra ...

The automatic fan controller circuit shown in the schematic has 2 comparators with different triggering points that are independently adjustable. LM135 or LM335 in a TO92 package is used as a ...

Many residential and commercial buildings across the United States have heating and cooling systems which are controlled by thermostats, usually an electronic instrument which is designed to detect ...

Analog circuits have had their day; everything is digital now. However, here’s a simple analog circuit built with one good, old, but still available pulse-width-modulating regulator chip. The ...