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L-band long range stacked-beam air defense and air traffic control search radar: General Electric: AN/FPS-8: L-band medium-range aircraft control and early warning search radar: AN/FPS-10: Fixed search radar, stripped-down version of AN/CPS-6B: AN/FPS-12: Surveillance radar supporting Downrange Anti-missile Measurement Program : USAS American ...
A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952. [1]
In 1965, it acquired Amana Refrigeration, Inc., a manufacturer of refrigerators and air conditioners. Using the Amana brand name and its distribution channels, Raytheon began selling the first countertop household microwave oven in 1967 and became a dominant manufacturer in the microwave oven business.
The Intel 8253 PIT was the original timing device used on IBM PC compatibles.It used a 1.193182 MHz clock signal (one third of the color burst frequency used by NTSC, one twelfth of the system clock crystal oscillator, [1] therefore one quarter of the 4.77 MHz CPU clock) and contains three timers.
ATmega328 is commonly used in many projects and autonomous systems where a simple, low-powered, low-cost micro-controller is needed. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini [4] and Arduino Nano models.
Squadrons quickly had special chutes fitted to their bombers to make chaff deployment even easier. Seeing this as a development that made it safer to go on operations, many crews got in as many trips as they could before the Germans found a counter-countermeasure. The effect of chaff on the display of a Würzburg Riese radar. The effect of ...
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Solid state relays were invented in 1971 by the Crydom Controls division of International Rectifier. [ non-primary source needed ] [ 1 ] SSRs consist of a sensor which responds to an appropriate input ( control signal ), an electronic switching device which switches power to the load circuitry, and a coupling mechanism to enable the control ...
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