This little bench-top tester was a real Mighty Mouse© as the sixties ended and the seventies began. It became the major tester of early semiconductor memories such as the 1103, the 2048, and the 4096. The test board plugged right into the front panel and there was a lamp for every pin that switched on every time the pin went high. ‘Girls’ on the line soon became proficient in watching the lamps and could tell if the memory was going to fail long before the tester itself knew. It could run at up to 5MHz, testing walking ones, marching ones, galloping ones and butterfly patterns. All for under $10,000.
William Mao who had left Litton Systems started Macrodata in 1969. The company was eventually acquired by Cutler-Hammer, which in turn was acquired by Eaton Corporation.
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- Key Contributors: Macrodata purchased Rights to an earlier test system comprising this design around 1970 and the designers' names have been lost. The individual champion to the unit after purchase was most likely William Mao, but other key contributors were surely involved and will be identified as their names are recovered.
- Industry code: Obsolete
- No Discernible Copyright Notice
Copied with the implied permission of the Copyright Owner - Mfr’s Code: ETN
