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| Recent Developments in Electronics April 1967 Electronics World | ||||||
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April 1967 Electronics World
[Table of Contents]People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Electronics World was published from May 1959 through December 1971. As time permits, I will be glad to scan articles for you. All copyrights (if any) are hereby acknowledged. See all the available Electronics World articles. Recent Developments in Electronics  Intelsat Communications Satellite. One of these two satellites, shown here undergoing final checkout tests, should be in full commercial service over the Pacific Ocean by the time this is being read. The satellite was launched successfully for Comsat in mid-January, and it achieved a synchronous orbit some 22,000 miles above the equator. The satellite is available for commercial telephone, television, and teletypewriter communications 24 hours a day. The Defense Department is expected to use 40 of its 240 communications channels. The 192-pound satellite has joined a sister satellite that's been hovering high above the Pacific and relaying signals since last fall, although the earlier satellite failed to achieve a synchronous orbit. The new orbiting microwave relay station, built by Hughes, links North America with the Far East through earth stations located at Brewster Flat in Washington, Hawaii, Australia, and Japan. Morse Code Trainer. An electronic system which will provide individual audio-visual instruction in Morse code for 24 students simultaneously is shown here. Consisting of computer-controlled training consoles, the system was designed to speed training in the traditional "dot-dash" method of communication. A letter is transmitted to the student through earphones and then flashed on an illuminated keyboard. When the student recognizes the letter, he depresses the proper key on his typewriter. A computer, which controls each console separately, analyzes every response and adjusts to the learning ability of the individual. The system is being built for the U.S. Army by Sylvania Electric.  Computer-Controlled Coke Oven. Electronic controls for one of the largest coal chemical process-control systems are now undergoing final simulation testing. To be installed at U.S. Steel's Clairton Works, near Pittsburgh, the supporting system will monitor the production of anhydrous ammonia and the extraction of other chemicals from coke-oven gas produced by the large coke oven installation at the plant. Fuel gas will also be produced. A constant check on the installation will be provided by electronic analog instrumentation and eight huge graphic panels (background) totaling 400 feet in length, along with five Westinghouse computers.  300-Foot Quick-Erect Microwave Tower. This microwave tower, compactly arranged on a trailer, can be untelescoped quickly to restore service to a microwave system that has been disrupted. The tower can be raised to a maximum height of 300 feet or to any lesser height to match the tower it replaces. Four 6-foot parabolic antennas and associated waveguide, all for use at 6000 MHz, can be mounted on the structure. Erection requires the services of five men. Guy wires are stored on a reel so they can be unrolled quickly. An associated gas-driven generator provides sufficient power to erect the tower and to provide lights for the tower and working area. The structure is being completed by Andrews Towers, Inc. for a major telephone company.  Stock-Price Display Uses IC's. A new display system with a semiconductor electronic "brain" will soon give investors and brokers a better picture of the stock market. The display, the very end of which is shown here with its electronics exposed, is legible in any light and is able to keep pace with the busiest market. The system, built by Trans-Lux Corp., links directly to the nationwide stock exchanges' communications networks to instantly display market quotations. It uses neither ticker nor tape because the brain converts network signals into quotations by means of pneumatically driven, high-contrast luminescent discs fixed to a conveyor belt. Solid-state components used are: IC's for control and logic, small-signal transistors for interfacing, SCR's and power transistors for character generation and motor drive, silicon light-sensors for readout and synchronization, diodes and unijunction transistors for timing and control. These semiconductor components are all from Texas Instruments' industrial line of epoxy-packaged devices.  Jet Dual-Cockpit Flight Simulator. The instructor's console in the Boeing 707 simulator allows the instructor to throw anyone or combination of 160 malfunction problems at the student during a simulated training flight. 3uilt to Pan Am specifications by Link, the simulator uses a new type of digital computer which can be programmed to operate two cockpits simultaneously but independently. Cost of the system is $2.5 million. It has already gone into operation at New York's J. F. Kennedy International Airport, and two similar systems have been ordered for use in Miami and San Francisco. The simulators will be used 17 hours a day, 7 days a week training and requalifying flight crews. Ultrasonic Eye Measurements. A new precise measurement instrument for the eye specialist that uses ultrasonic waves to determine eye-length intraocular distances to an accuracy of 0.03 mm, or 0.0012 in, is shown. The patient wears rubber goggles which act as liquid-couplant reservoirs for the ultrasonic energy. Measurement of the ultrasonic beam, which is not felt by the patient, enables the system to detect and display both front and rear surfaces of the cornea, both surfaces of the lens, and the retina, choroid, and sclera interfaces. The instrument was developed by Automation Industries. Posted 3/15/2012 | ||||||
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