transistors) began to get-macro-results replace vacuum tubes. In the early get-macro-results 1960s, solid-state circuitry (i. Although adding the remote control system increased the price of the TV set by about 30 percent, it was a technical get-macro-results success and was adopted in later years by other manufacturers. The original Space Command remote control was expensive because get-macro-results an elaborate receiver in the TV set, using six additional vacuum tubes, was needed to pick up and process the signals.
Quarter Century of Ultrasonic get-macro-results Remotes. They were excited by a trigger mechanism -- similar to the trigger of a gun -- that stretched a spring and then get-macro-results released it so that a small hammer would strike the aluminum rod. The first such remote control used four rods, each approximately 2-1/2 inches long: one for channel up, one for channel down, get-macro-results one for sound on and off and one for power on and off. He was assigned to lead a team of engineers to work on the first get-macro-results use of ultrasonics technology in the home as a new approach for a remote control.