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Joly-Arco alternator - In this machine, invented by Georg von Arco around 1911, the alternator produced its signal at a lower fundamental frequency, and the frequency was multiplied 2 to 4 times in separate magnetic frequency doublers, [3] invented by Vallauri [10] and Maurice Joly [11] in 1911, [12] a nonlinear transformer with its iron core ...
Tri Lite, Inc. announced its acquisition of the Mars Signal Light Company, on January 23, 1991. Tri Lite still manufactures many of the traditional Mars Lights under the Tri Lite Mars brand. The company has since updated the Mars "888" Traffic Breaker with energy-efficient LEDs replacing the earlier sealed beam halogen/incandescent lamp.
Three gearboxes were available with ratios of 2.675, 2.973 and 3.324 and the 900 RPM driving motor was operated at slips of 4% to 20%, giving speeds of 864 to 720 RPM. Transmitters installed in Europe, operating on 50 Hz power, had a wavelength range of 12,500 to 28,800 meters due to the lower speed of the driving motor.
James Dennis Ford is set to be executed at the Florida State Prison in Raiford, Florida, at 6 p.m. ET on Thursday, Feb. 13. What happened to Greg and Kimberly Malnory?
A United States Air Force Boeing RC-135 aircraft in flight Royal Air Force Hawker Siddeley Nimrod A52 Oste, an Oste class ELINT and reconnaissance ship, of the German Navy. Signals intelligence operational platforms are employed by nations to collect signals intelligence, which is intelligence-gathering by interception of signals, whether between people (i.e., COMINT or communications ...
An SMS scam targeting road tolls has resurfaced, claiming people owe money for unpaid bills.. An example of the scam text people may receive reads as follows: "Pay your FastTrak Lane tolls by ...
Some of the public health websites that the US government was ordered to restore involving gender and gender identity now carry a warning denying the existence of transgender people.
1921 Presto Lite car battery ad from Canada. Prestolite Electric Incorporated is a global manufacturer and supplier of alternators, starters, electrical equipment, and services to the transportation, industrial, military, marine, agricultural and construction industries.