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CK722 transistor and package. The CK722 was the first low-cost junction transistor available to the general public. It was a PNP germanium small-signal unit. Developed by Norman Krim, it was introduced by Raytheon in early 1953 for $7.60 each; the price was reduced to $3.50 in late 1954 and to $0.99 in 1956.
He is particularly known for developing the first mass-production alloy junction transistor and used the fallouts or transistors that did not meet specifications as transistors to be sold at a much lower cost, the CK721 and CK722. Raytheon quickly moved into alloy junction transistor because of the lower noise, more rugged and lend itself to ...
The first low-cost junction transistor available to the general public was the CK722, a PNP germanium small signal unit introduced by Raytheon in early 1953 for $7.60 each. In the 1950s and 1960s, hundreds of hobbyist electronics projects based around the CK722 transistor were published in popular books and magazines.
Like Raytheon's CK722, the GE 2N107 were fallouts or rejects of GE's successful 2N43, 2N44 and 2N45 alloy junction transistors. Unlike early Raytheon transistors, which were sealed in a resin material, GE devices were housed in metal hermetically-sealed enclosures, removing oxygen and other potential contaminants to ensure reliability and long ...
The Raytheon Company was a major U.S. defense contractor and industrial corporation with manufacturing concentrations in ... including the CK722, priced and marketed ...
Most of the early projects used vacuum tubes, as transistors (which had just become available to hobbyists) were expensive: the small-signal Raytheon CK722 transistor was US$3.50 in the December 1954 issue, while a typical small-signal vacuum tube (the 12AX7) was $0.61. Lou Garner wrote the feature story for the first issue, a battery-powered ...
Raytheon Missiles & Defense (RMD) was one of four business segments of RTX Corporation. Headquartered in Tucson, Arizona, its president was Wes Kremer. [ 1 ] The business produced a broad portfolio of advanced technologies, including air and missile defense systems, precision weapons, radars, and command and control systems. [ 2 ]
Executive Chairman of Raytheon Technologies Thomas A. Kennedy (born 1955) is an American business executive. He was the chief executive officer (CEO) and chairman of the Raytheon from March 2014 to April 2020.