100 results found for 40 Years Ago, displaying items 1 - 20
December 17, 2001 Transistors Undergo Mass Testing
Reliability in transistors is being greatly enhanced by the combined use of automatic testing systems, and data-processing and computer techniques. In the evolution of automated testing, two systems have been introduced—one specifically...
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Steve Scrupski
December 17, 2001 New Connectors Withstand Adverse Environments
A new rack-and-panel connector design almost eliminates physical damage caused by environmental conditions, shock, and vibration. The connector provides multiple points of contact at all times, protecting the contacts against damage and improving...
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Steve Scrupski
December 3, 2001 Extending High-Frequency Response
High-frequency transistor limits can be extended and circuit gain increased through a new technique that neutralizes the detrimental effect of emitter inductance. This parameter has a serious effect on the high-frequency performance of transistor...
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Steve Scrupski
December 3, 2001 Infrared Camera Spots Malfunctions
By photographing a circuit board with an infrared scanning camera, engineers can, within 10 to 60 sec, detect overheated components. This infrared technique is presently being used by engineers at International Business Machines Corp. to measure...
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Steve Scrupski
November 19, 2001 Illiac II Computer Shaping Up For Tests
Iliac II, the University of Illinois' scientific computer, is expected to be ready for its first system tests next spring. At that time, the arithmetic units, some of the control units, core storage, and some of the tape units should be...
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Steve Scrupski
November 5, 2001 Switching, Frequency Barriers Fall
Solid-state devices for faster switching or higher frequency operation were prominent among developments unveiled at the Electron Devices Meeting in Washington, Oct. 26-28. New advances in microwave, data-handling, and energy-source devices also...
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Steve Scrupski
November 5, 2001 Photoconductive Cells For Industrial Use
About 1000 times more light-sensitive than photovoltaic cells, these photoconductive cells are designed for light-dependent control applications. They are available in four basic sizes: a "Compactron" type, a 9-pin type in a conventional tube...
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Steve Scrupski
October 29, 2001 Packaging Is A Problem In R&D, Too
The packaging approaches of advanced-systems development laboratories are worth examining. During the coming turmoil and transition, these laboratories must solve the following problems if they are to justify the large sums invested in...
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Steve Scrupski
October 29, 2001 Fluid-Sphere Gyro Has High Sensitivity
A radical departure from conventional gyro design has resulted in a device that can detect motion too minute to be measured. The miniature gyro's unique sensing ability makes it especially suitable for stabilizing space platforms carrying...
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Steve Scrupski
October 15, 2001 Flying-Spot Scanners Speed Inputs
Character-recognition machines, based on high-resolution flying-spot scanners and sophisticated logic circuitry, promise variable-type-face, high-speed data input directly from machine-printed documents. Techniques used in the Apple...
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Steve Scrupski
October 15, 2001 Magnetic Computer Uses Multiaperture Cores
An airborne, guidance-type computer that would use magnetic circuitry for logic as well as for memory is being built by Sperry Gyroscope Co., Great Neck, N.Y. Basic clock rate of the system is to be 600 kc sine wave, which is said to make possible...
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Steve Scrupski
October 1, 2001 Four New HP Solid State Counters
All the advantages of solid-state design are now yours in these new hp solid state counters—offered at prices comparable to those of today's vacuum tube counters. And you get the advantages of greater readability, faster measurements, easier...
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Steve Scrupski
October 1, 2001 High-Temperature Glass Used To Seal Diodes
High-temperature sealing of silicon-diode sheets has been achieved with a technique that may provide hermetically sealed semiconductor devices without the use of cans. The method is adaptable to volume production, and tests indicate that excellent...
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Steve Scrupski
September 17, 2001 Design Of Arecibo Radar On Schedule
By early next spring, the huge 430-mc radar being built near Arecibo, Puerto Rico, for the Advanced Research Projects Agency of the Defense Department should be collecting data on electron density in the iono-sphere. This is an estimate made in...
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Steve Scrupski
August 20, 2001 Thin-Film Memory Gives Fast Output
A magnetic thin-film cylinder that contains features of the thin-film dot, the ferrite core, and the magnetic rod is bidding for an important role in future computer memories. Under development by CBS Laboratories of Stamford, Conn., the device,...
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Steve Scrupski
August 20, 2001 San Francisco: Golden Gate To Electronic Research
Engineers attending the forthcoming Western Electronics Show and Convention will find the San Francisco area a thriving center of electronic research. Intensive studies are under way today in solid state, microwaves, information handling, and other...
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Steve Scrupski
August 6, 2001 Tiros III Carries New Solid-State Timer
An all-solid-state timer on the newly orbited Tiros III weather satellite represents a significant electronic advance, according to its designers at RCA. Tiros III is making possible studies of the formation of tropical storms over the Caribbean,...
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Steve Scrupski
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