Vacuum tube

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Ingenium, 1992.1140.001
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OBJECT TYPE: REMOTE CUTOFF/RF AMPLIFIER
DATE: 1934
ARTIFACT NUMBER: 1992.1140.001

MANUFACTURER: GRIGSBY-GRUNOW CO.
MODEL: G51S
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: 12.4 cm
Width: 4.5 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: GRIGSBY
Country: United States of America
State/Province: Unknown
City: Unknown

Context

Country: North America
State/Province: Unknown
Period: 1930'S
Canada: ROGERS BECAME ASSOCIATED WITH THE GRIGSBY CO. OF CHICAGO & THE ROGERS MAJESTIC CORP. LTD. WAS FORMED/ THE AMERICAN INFLUENCE ON THIS IN THE LATER ROGERS RADIO TUBES LTD. RESULTED IN ROGERS PRODUCING SPRAY-SHIELDED TUBES
Function: USED IN AC RADIO RECEIVERS AS A RF AND AF AMPLIFIER/ SUPER CONTROL FEATURE MAKES IT POSSIBLE TO USE IN CIRCUITS INCORPORATING AUTOMATIC VOLUME CONTROL
Technical: 'MAJESTIC' TUBES WERE THE FIRST AND ONLY AMERICAN MANUFACTURED TUBES TO BE SPRAY-SHIELDED
Area Notes: Unknown

Details

Markings: "HOT-BRANDED" IN BASE: 'Majestic/ MADE INU.S.A./ G-51-S'
Missing: N/A
Finish: GREY SPRAY PAINTED BULB/ BLACK BASE
Decoration: N/A

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

GRIGSBY-GRUNOW CO., Vacuum tube, circa 1934, Artifact no. 1992.1140, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1992.1140.001/

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