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Image Not Available for 2xTRIODE
2xTRIODE
Image Not Available for 2xTRIODE

2xTRIODE

Date1856
Inventory NumberVT4087
ClassificationVacuum Tube
Maker General Electric Company 1892-present
Place of OriginSchenectady, N.Y.
Dimensions2 x 5.4 cm (13/16 x 2 1/8 in.)
Overall - Storage: 2.4 x 2.4 x 6.5 cm (15/16 x 15/16 x 2 9/16 in.)
DescriptionFROM WILLIAMS COLLEGE 10/94
General Electric Company
Date: 1850
Object number: VT3992
Western Electric Company
Date: after 1940
Object number: VT4080
Radio Corporation of America
Date: 1823
Object number: VT4392
individuals are listed as follows on the back of the photograph:

Left to Right:
1st. row - …
International Business Machines Corporation
Date: 1944
Object number: Lib.1964-107
inscription on the back of a Mark I dedication ceremony photograph. the inscription reads as fo…
International Business Machines Corporation
Date: 1944
Object number: Lib.1964-108
Hazen-Williams hydraulic slide chart
Lock Joint Pipe Company
Object number: 1997-1-1611
Hazen-Williams hydraulic slide chart
Lock Joint Pipe Company
Accessories: postmarked envelope; two instruction booklets
Object number: 1997-1-1623
UTT-Williams Aeroloop loop radio antenna
Utt-Williams Electrical Products Company
Date: circa 1926
Object number: RS0631
Bell hard rubber receiver/ transmitter
National Bell Telephone Company
Date: 1879
Object number: 8010
Bell hard rubber receiver/ transmitter
National Bell Telephone Company
Date: 1879
Object number: 8011
Western Electric Company
Date: 1937
Object number: VT4062
Graflex Pacemaker Crown Graphic folding camera
Graflex, Inc.
Date: 1947-1955
Accessories: gray metal carrying case; film packs (6); one film pack adapter; light meter; color filters (5); leather strap; instruction leaflet
Object number: 1989-0029