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Item #

A3914

1948 IBM Pluggable Unit and Advertisement

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V020616

Price $

195

This is an original IBM Pluggable Computer Logic Electronics Unit for 604 Computer and also includes the Original Advertisement.  We have seen these IBM Pluggable Units sell for over $ 300.00 and the original Advertisement sell for nearly $ 100.00.  On top it is labeled AM-301.  It is in very good condition with IBM label on tube and 6211; Part NO 252551.  This was a revolutionary invention by IBM in 1948 as the Vacuum Tube had all supporting logic electronics in one unit.  Computer failure could be easily diagnosed and a new Pluggable Unit quickly installed.   Included is the original IBM Advertisement for this revolutionary Pluggable Unit called “Piercing The Unknown”.   This is the rare advertisement showing the actual Pluggable Unit with Vacuum Tube and below electronics that was made the IBM 604 Calculating Punch the most sophisticated machine of the time.  Pluggable Unit is 6” in length.   Advertisement is 10” x 7”.  A portion of Advertisement reads “This IBM electronic tube assembly cuts through the unknown like a rocket through the stratosphere…...  This rare treasure from 40+ years ago will highlight any collection of IBM memorabilia.

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