Artifact Details Title Whirlwind vacuum tube plug-in module Catalog Number 102681365 Type Physical object Description Object is small pluggable module with two vacuum tube sockets that are both populated. Engraved on top of unit is "CONTROL PULSE OUTPUT". Object has two paper tags attached. Written on one tag is "20". Written on other tag is "C10-6, P18". Date 1951 Manufacturer Massachusetts Institute of Technology (MIT) Identifying Numbers Other number 20 Written on paper tag attached to object. Serial number 64 Dimensions overall: 10 in x 6 in x 2 in Category Component/module Credit Gift of Bill Wolf Lot Number X1256.96