Vacuum tube

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Ingenium, 1989.0184.001
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OBJECT TYPE: 50W
DATE: 1928
ARTIFACT NUMBER: 1989.0184.001

MANUFACTURER: NORTHERN ELECTRIC CO. LTD.
MODEL: R211D
LOCATION: Canada

More Information

General Information

Serial #: 75587
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: GLASS ENVELOPE/ METAL BASE/ GLASS, METAL & CERAMIC WORKING PARTS/ CARDBOARD BOX WITH PAPER LABEL

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 26.0 cm
Width: 12.5 cm
Height: 13.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Vacuum Tubes
Category: Transmitting
Sub-Category: N/A

Manufacturer

AKA: NORTHERN ELECTRIC
Country: Canada
State/Province: Unknown
City: Unknown

Context

Country: Unknown
State/Province: Unknown
Period: 1920'S & EARLY 1930'S
Canada: MANUFACTURED & USED IN CANADA
Function: USED AS POWER OUTPUT TUBE IN TELEGRAPH TRANSMITTING SETS & IN PAIRS IN 100 WATT BROADCAST TRANSMITTERS. IT IS USED EXTENSIVELY FOR TRANSMITTING & FOR AMPLFYING SPEECH CURRENTS IN BROADCASTING EQ. AND PUBLIC ADDRESS SYSTEMS ETC.
Technical: Unknown
Area Notes: Unknown

Details

Markings: TUBE: PRINTED ON ENVELOPE - 'NORTHERN ELECTRIC/ COMPANY LIMITED/ R211-D/ MADE INCANADA/ PATENTED/ 1917 1925 1928/ 1920/ 1927/ 1922 1928/ 75587'/ LABEL ON BOX READS IN PART: 'Northern Electric/ COMPANY LIMITED/ 211-D/VACUUM TUBE/ MADE IN CANADA'.
Missing: N/A
Finish: UNCOLOURED GLASS WITH TOP SILVERED/ WHITE PRINTING/ BROWN BOTTOM/ BOX: BROWN WHITE/ WHITE LABEL WITH BLUE PRINTING
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

NORTHERN ELECTRIC CO. LTD., Vacuum tube, after 1928, Artifact no. 1989.0184, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1989.0184.001/

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