From magnetic tape and rare film to lab notebooks and business plans to early mainframes and source code, our collection is as diverse as the history of computing. It is a rich resource for everyone, comprising historical objects, documents, software titles, ephemera, and photographs and moving images.
Search the Catalog
Catalog contains over 150,181 records.
Prototype germanium transistors
Physical Object, CA. 1955
102757297
Grown-junction transistor
Ratheon Semiconductor Division
Physical Object, ca. 1955
102757296
Germanium diodes
Physical Object, 1950-1957
102757328
Unknown germanium device
Physical Object
102757300
CK851 Germanium diodes
Ratheon Semiconductor Division
Physical Object, Circa 1955
102757317
CK725 Germanium transistor
Ratheon Semiconductor Division
Physical Object, 1955
102757310
Germanium diode prototypes
Ratheon Semiconductor Division
Physical Object, ca. 1955
102757315
Semiconductors
Physical Object, Circa 1955
102757322
CK727 Germanium transistors
Ratheon Semiconductor Division
Physical Object, 1954-01
102757311
Germanium diode prototypes
Ratheon Semiconductor Division
Physical Object
102757325
Germanium diode prototype
Physical Object, Circa 1950s
102757326
3N21 Germanium tetrode
Sylvania
Physical Object
102757305
CK 718 Germanium transistors
Raytheon Manufacturing Company
Physical Object, CA. 1955
102757312
CK742 Germanium diode
Ratheon Semiconductor Division
Physical Object, 1954 week 28
102757303
CK721 Germanium transistors
Ratheon Semiconductor Division
Physical Object, 1953 - 1954
102757308
Alloy-junction germanium transistor
Amperex
Physical Object, Circa 1953
102757323
2N68 Germanium power transistors
Sylvania
Physical Object, Circa 1954
102757298
Germanium transisistors
Ratheon Semiconductor Division
Physical Object, ca. 1955
102757306
Prototype transistors
Ratheon Semiconductor Division
Physical Object
102757313
Point-contact transistor prototypes
Sylvania
Physical Object, ca. 1955
102757320