Texas Instruments
In 1930, J. Clarence Karcher and Eugene McDermott founded Geophysical Service, an early provider of seismic exploration services to the petroleum industry. In 1939, the company reorganized as Coronado Corp., an oil company with Geophysical Service Inc (GSI), now as a subsidiary. On December 6, 1941, McDermott along with three other GSI employees, J. Erik Jonsson, Cecil H. Green, and H.B. Peacock purchased GSI. During World War II, GSI expanded their services to include electronics for the U.S. Army, Signal Corps, and the U.S. Navy. In 1951, the company changed its name to Texas Instruments, with GSI becoming a wholly owned subsidiary of the new company.
Rodgers Instruments
Rodgers Instruments Corporation is an American manufacturer of classical and church organs. Rodgers was incorporated May 1, 1958 in Beaverton, Oregon by founders, Rodgers W. Jenkins and Fred Tinker, employees of Tektronix, Inc., of Portland, Oregon, and members of a Tektronix team developing transistor-based oscillator circuits. Rodgers was the second manufacturer of solid state oscillator-based organs, completing their first instrument in 1958 (the first was the Gulbransen "B" home organ, introduced in July 1957. Both the Rodgers and the Gulbransen had vacuum-tube amplifiers. In 1962, upon introducing solid-state amplifiers, Rodgers became the world's first all-transistor organ). Other Rodgers innovations in the electronic organ industry include solid-state organ amplifiers (1962), single-contact diode keying (1961), reed switch pedal keying for pedalboards (1961), programmable computer memory pistons (1966), and the first MIDI-supported church organs (1986).