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1964 - MADs, small ferrite cores wired together without intervening vacuum tubes, transistors or other semiconductors

MAGNETIC MULTI-APERTURE DEVICES

E&MP52.008

Electronics

February 9, 1964

Sylvania Electric Products inc. today announced the development of a system using magnetic multi-aperture devices (MADs) for combined logic, memory and visual indicator control in a military electronic system. Sylvania is a subsidiary of General Telephone & Electronics Corporation.

MADs, which are small ferrite cores wired together without intervening vacuum tubes, transistors or other semiconductors, are the two small circular devices in center above. They perform the work of the transistor storage circuit and amplifier care (left). At right, a group of MADs are shown as they appear in a module or "stick" ready for use. The module at right performs the work of eight cards, similar to the one at left.

Developed at the eastern operation of Sylvania Electronic Systems, a division of the company, the system design reduces from 70,000 to 7,000 the number of components required in the console display of a major weapons system while increasing reliability up to 400 per cent.

PUBLIC RELATIONS DEPARTMENT (JKJ)
SYLVANIA ELECTRIC PRODUCTS INC.
730 THIRD AVENUE, NEW YORK, N. Y. 10017
RELEASE DATE:
MORNING NEWSPAPERS OF MONDAY,
FEBRUARY 10, 1964
(6:30 P.M., EST, SUNDAY,
FEBRUARY 9, 1964)

Original Caption by Science Service
Sylvania



National Museum of American History

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