Test set, vacuum tube

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Ingenium, 1980.0383.001
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OBJECT TYPE: WHEATSTONE BRIDGE/LAB
DATE: 1950
ARTIFACT NUMBER: 1980.0383.001

MANUFACTURER: General Radio Co.
MODEL: 561D
LOCATION: Cambridge, Massachusetts, United States of America

More Information

General Information

Serial #: 402
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: WOOD CABINET/ 1/4 IN. ALUMINUM TOP PANEL/ METAL JACKS/ SYNTHETIC KNOBS, CONNECTORS & CABLES/ METAL & SYNTHETIC WORKING PARTS

Dimensions

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

Length: 46.5 cm
Width: 40.0 cm
Height: 25.6 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Vacuum Tubes
Category: Service-test equipment
Sub-Category: N/A

Manufacturer

AKA: General Radio
Country: United States of America
State/Province: Massachusetts
City: Cambridge

Context

Country: North America
State/Province: Unknown
Period: 1953 TO 1975
Canada: USED IN CANADA
Function: MEASURES THE DYNAMIC COEFFICIENTS OF A WIDE RANGE OF VACUUM TUBES UNDER A WIDE VARIETY OF OPERATING CONDITIONS.
Technical: AN INTERESTING APPLICATION OF THE WHEATSTONE BRIDGE PRINCIPLE
Area Notes: Unknown

Details

Markings: TOP PANEL: 'VACUUM-TUBE BRIDGE/ TYPE 561-D SERIAL NO. 402/ GENERAL RADIO CO./ CAMBRIDGE MASS. U.S.A./ PLATE RESISTANCE-OHMS-MULTIPLY BY 10-2/ MUTUAL CONDUCTANCE-MICROMHOS-MULTIPLY BY 10-2/ AMPLIFICATION FACTOR- ETC.]
Missing: N/A
Finish: CABINET VARNISHED/ TOP PANEL BLACK ENAMEL SIMULATED LEATHER/ BLACK KNOBS &CABLES/ WHITE PRINTING
Decoration: N/A

CITE THIS OBJECT

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

General Radio Co., Test set, vacuum tube, circa 1950, Artifact no. 1980.0383, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1980.0383.001/

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