IBM 701 vacuum tube plug-in unit

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Date
1952 ca.
Credit Line
Courtesy of the IBM Corporate Archive
Copyright Owner
© International Business Machines Corporation (IBM)
Keywords
IBM 701 (Computer); Vacuum tube; IBM 604 (computer)
Object ID
500004314

The replaceable vacuum-tube modules introduced with the 604 multiplier allowed quick repairs when compared to a large wired chassis. The modules became the standard for all the 700-series computers.