in the 1950s and into the 21st century. Tektronix would replace DuMont Oscillographs as the leading selling oscilloscope brand. When Fairchild Camera and Instrument acquired DuMont Laboratories in 1960, oscilloscopes were still being made with the DuMont name brand. Allen DuMont became Group General Manager of the DuMont Division, until his death in 1965. All DuMont oscilloscopes in the late 1950s and after the Fairchild acquisition were using the time base trigger and time sweep generator method introduced by Tektronix. The DuMont line of oscilloscopes continued to be produced into the 1980s. During the early years of World War II, DuMont received special government contracts to provide large wide cathode ray tubes. These special tubes allowed scientists working on the Manhattan Project to study the action of accelerated electrons. Other achievements In 1932, DuMont proposed a "ship finder" device to the United States Army Signal Corps at Fort Monmouth, New Jersey, that used radio wave distortions to locate objects on a cathode ray tube screen, a type of radar. The military asked him, however, not to take out a patent for developing what they wanted to maintain as a secret, and so he is not often mentioned among those responsible for radar. In 1932, DuMont invented the magic eye tube also known as the Electron Ray Tube, used as a tuning accessory in radios and as a level meter in mono and stereo home reel-to-reel tape recorders. In the 1930s the manufacture of mechanical panel meters were labor-intensive and expensive. Magic eye tubes provided radio designers with a less expensive and more profitable way to add a feature usually found in higher price equipment. The general public reception was a success as customers like the green glow and the seemingly magical way it worked. He released information on his invention the following year. He sold the patents and rights to RCA for $20,000 to help fund his other projects. DuMont produced black and white televisions in the late 1930s, 1940s and 1950s that were generally regarded as offering highest quality and durability. Many of these premium sets included a built in AM/FM radio and record player. DuMont sold his television manufacturing division to Emerson Radio in 1958, and sold the remainder of the company to Fairchild Camera in 1960. Fairchild later developed semiconductor microchips. Robert Noyce, a co-founder of Intel, originally worked for DuMont as an engineer. DuMont Television Network