This is an Extremely Rare Amdahl Multi Chip Carrier CPU Board using ECL Technology from an Amdahl 470 Mainframe Computer from the 1970s.
Unfortiunately I was late getting to this one before a now ex employee broke off 2 of the ECL Chips on the left side so this unit is priced appropriately.
It comes complete with a Carrier Frame and Cover used to store it when not in use in a Computer.
This is a Large Board with the Carrier and Cover weighing in at 1.3Kg and overall dimensions of 25cm x 25cm
Amdahl Corporation was an information technology company which specialized in IBM mainframe-compatible computer products, some of which were regarded as supercomputers competing with those from Cray Research.
Founded in 1970 by Gene Amdahl, a former IBM computer engineer best known as chief architect of System/360, it has been a wholly owned subsidiary of Fujitsu since 1997.
The company was located in Sunnyvale, California.
The Amdahl 470 was a plug-compatible mainframe computer, designed by Gene Amdahl and introduced by Amdahl Corporation in 1975 to compete with IBM, offering similar performance and software compatibility at a lower cost.
Amdahl engineers, working with Fujitsu circuit designers, developed unique, air-cooled chips which were based on high-speed emitter-coupled logic (ECL) circuit macros. These chips were packaged in a chip package with a heat-dissipating cooling attachment consisting of a cylindrical arrangement of fins, similar to the heat-dissipating fins on a motorcycle engine, mounted directly on the top of the chip
This patented technology allowed the Amdahl mainframes of this era to be completely air-cooled, unlike IBM systems that required chilled water and its supporting infrastructure.
I can assure any buyers that the prices for these vintage Chips will rise significantly over the coming years as they have done so over the past 30 years so it will be a good investment for them as the majority of the older chips have been scrapped for their gold content.
