Artifact Details Title Whirlwind control pulse output module Catalog Number 102732501 Type Physical object Description Object is a pluggable module for two vacuum tubes (both present). The module consists of capacitors, resistors, vacuum tubes, transformers and chokes. There are two 9-pin male connectors on the bottom. Date 1951 Manufacturer Massachusetts Institute of Technology (MIT) Identifying Numbers Serial number 139 Stamped on top of frame Dimensions overall: 10 1/4 in x 6 1/4 in x 2 in Category Component/module Lot Number X115.82