Whirlwind vacuum tube rack
Massachusetts Institute of Technology (MIT)
||On an engraved plate on the indside of the rack.
||Handwritten on on eight paper tags attached to the module.
||Stamped in white on the side of the rack.
overall: 12 in x 26 in x 7 5/8 in
The record contains a ten module rack. Each module has two vacuum tubes. There are ten BNC connectors on one side, and two power terminal blocks on the right side.