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Collection: William Regitz
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Creator
Date Added
Bell Telephone Laboratories in Murray Hill, New Jersey
Gottscho-Schleisner, Inc.
May 1942
Point Contact Transistor Schematic
忍者猫
March 2020
Triode Vacuum Tube Schematic
Ojibberish
June 2007
ERA Magnetic Drum
Created by Robert Freiberger
8-Jan
IBM 650 with Side View of Magnetic Drum
Fernando Losada Rodriguez
22-Aug
IBM 650 with View of Magnetic Drum
Cushing Memorial Library and Archives, Texas A&M
c. 1950s
IBM 650 with Front View of Magnetic Drum
MUNCYT2
11-Jun
Twistor Memory Unit
Switchboard Operators
Seattle Municipal Archives
1952
Switchboard Operators at the Bell System International Telephone Switchboard
U.S. National Archives
1939-1945
Page
of 16
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Switchboard Operators at the Bell System International Telephone Switchboard
Bell Telephone Laboratories in Murray Hill, New Jersey
Point Contact Transistor Schematic
Triode Vacuum Tube Schematic
ERA Magnetic Drum
IBM 650 with Side View of Magnetic Drum
IBM 650 with View of Magnetic Drum
IBM 650 with Front View of Magnetic Drum
Twistor Memory Unit
Switchboard Operators