Summary
A memory unit, possibly either an "A Type Plug-in Unit" for an Elliott 402 computer system or a "Single Word Nickel Delay Line" for a National-Elliott 405 computer system.
Physical Description
A printed circuit board inside a square shaped aluminium housing with a curved metal handle. There are three electronic valves on top of the housing. There is a red stamp on one side, text in black marker pen and in pencil. There is a manufacturer's plate on the end of the handle and some handwritten text. A number is stamped inside the housing (visible without opening the box). There are four 8-socket "Jones type" connectors in the base of the unit.
More Information
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Collecting Areas
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Manufacturer
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Inscriptions
Manufacturer's label: " ELLIOTT / UNIT AN2 / SERIAL No. / 233 " Handwritten on handle: " 14/10 ", " V G U / 17 " Stamped on side: " 16 SEP 1960 " Black marker on side: " 2 of 4 " Inside housing: " B1637-1 "
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
46 mm (Width), 290 mm (Depth), 153 mm (Height)
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References
Details of Elliott computer systems, including pictures, in documents from website "Our Computer Heritage" SYSTEMS ARCHITECTURE FOR ELLIOTT 401, 402, 403 & 405 COMPUTERS, CCS-E2X2 - Issue 28, 2nd August 2006, Compiled by D. J. Pentecost [Link 1] - Retrieved 5 Oct 2010 (M. Vaughan) Delivery & Applications list of Elliott 401, 402, 403 & 405 computers, CCS-E2X1 - Issue 9 - 26th June 2006 [Link 2] - Retrieved 5 Oct 2010 (M. Vaughan)
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Keywords
Circuit Boards, Computer Hardware, Computer Memory Devices, Electronics