Vacuum tube
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1975.0513.001
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- OBJECT TYPE
- DETECTOR/AMPLIFIER
- DATE
- 1920–1923
- ARTIFACT NUMBER
- 1975.0513.001
- MANUFACTURER
- MOORHEAD
- MODEL
- ER
- LOCATION
- Unknown
More Information
General Information
- Serial #
- 534563
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS/ METAL/ SYNTHETIC/ CORK
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 10.2 cm
- Width
- 3.5 cm
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Vacuum Tubes
- Category
- Receiving
- Sub-Category
- N/A
Manufacturer
- AKA
- MOORHEAD
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- United States of America
- State/Province
- Unknown
- Period
- 1920'S
- Canada
-
Unknown - Function
-
USED AS A DETECTOR & AMPLIFIER IN RADIO RECEIVERS - Technical
-
TYPE SAMPLE OF EARLY MOORHEAD TUBE KNOWN AS AN ELECTRON RELAY - FURTHER DEVELOPMENT OF EARLY UNBASED 'ER' TUBE - Area Notes
-
Unknown
Details
- Markings
- ETCHED ON GLASS: 'LICENSEN FOR AMATEUR [?]/ EXPERIMENTAL USE ONLY/ E.R. 534563'/ ON BASE: 'DE FOREST AUDION/ U.S. PATENTS 841387, 879532/ SOLD ONLY FOR AMATEUR/ AND EXPERIMENTAL USE/ [LOGO] MARCONI/ TRADE MARK/ FLEMING PATENT NO. 803684'
- Missing
- N/A
- Finish
- UNCOLOURED GLASS/ UNFINISHED METAL
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
MOORHEAD, Vacuum tube, circa 1920–1923, Artifact no. 1975.0513, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1975.0513.001/
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