Vacuum tube
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1992.1137.001
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- OBJECT TYPE
- DOORKNOB/UHF/SHARP CUTOFF
- DATE
- 1943–1950
- ARTIFACT NUMBER
- 1992.1137.001
- MANUFACTURER
- TUNG-SOL
- MODEL
- 717A
- LOCATION
- United States of America
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS/ METAL/ SYNTHETIC
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 4.9 cm
- Width
- 3.3 cm
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Vacuum Tubes
- Category
- Radar
- Sub-Category
- N/A
Manufacturer
- AKA
- TUNG SOL
- Country
- United States of America
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Worldwide
- State/Province
- Unknown
- Period
- MAINLY DURING WWII
- Canada
-
Unknown - Function
-
LOW POWER APPLICATIONS AT AF, IF AND UHF FREQUENCIES/ ALSO USED AS A RADAR IF AMPLIFIER AT 30 OR 60 MHZ - Technical
-
DEVELOPED FROM PRE-WAR 386A/ HAD A LARGE DEMAND FOR REPLACEMENT PURPOSES IN GOVERNMENT EQUIPMENT - Area Notes
-
Unknown
Details
- Markings
- PRINTED ON GLASS TOP: 'TUNG-SOL/ JAN-CTL-717A/ VT-269/ MADE IN U.S.A.'/ 'SC/ 66/ A/ JAN-CTL-717A/ VT-269 TUNG-SOL/ MADE/ IN/ U.S.A./ GJ'/ 'LICENSED ONLY TO EXTENT INDICATED ON CARTON'
- Missing
- N/A
- Finish
- UNCOLOURED GLASS/ UNFINISHED METAL BASE WITH BLACK PRINTING/ DARK BROWN INSERT
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
TUNG-SOL, Vacuum tube, circa 1943–1950, Artifact no. 1992.1137, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.1137.001/
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