Vacuum tube

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Ingenium, 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://collection.ingeniumcanada.org/en/id/1975.0513.001/

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