Bridge, Wheatstone

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Ingenium, 1971.0067.001
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OBJECT TYPE: LAB/DECADE
DATE: 1930–1939
ARTIFACT NUMBER: 1971.0067.001

MANUFACTURER: Polytronics Co.
MODEL: BW-210
LOCATION: Toronto, Ontario, Canada

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: WOOD CASE & LID/ BRASS BARS & HARDWARE/ BAKELITE TOP PANEL & WING KNOBS ON CONNECTOR PLUGS

Dimensions

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

Length: 55.0 cm
Width: 39.0 cm
Height: 25.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Energy-electric
Category: Measurement
Sub-Category: N/A

Manufacturer

AKA: Polytronics
Country: Canada
State/Province: Ontario
City: Toronto

Context

Country: Canada
State/Province: Unknown
Period: 1930'S & 1964
Canada: MADE & USED IN CANADA/ EXAMPLE OF TECHNICAL ABILITY OF CANADIANS TO COPY A HIGHLY PRECISE TECHNICAL DEVICE
Function: TO PERFORM PRECISE RESISTANCE MEASUREMENTS IN RESEARCH OR IN ACCEPTANCE OF CRITICAL MATERIALS OR COMPONENTS
Technical: EXAMPLE OF A PRECISE TESTING DEVICE OF THE PERIOD
Area Notes: Unknown

Details

Markings: PRINTED ON TOP PANEL: 'POLYTRONICS CO./ TORONTO CANADA/ WHEATSTONE BRIDGE/ MODEL BW-210'/ VARIOUS INDICATIONS AROUND POSTS/ DECADE VALUES ON BARS/PLATES ON FRONT: 'C.I.R.D.- (D.D.P.)/ CANADIAN GOVERNMENT PROPERTY/ F.E. CAMESA/ CONTACT SER. NO. 2-P-1-1342/ ITEM NO. CA 6'/ 'DEPT. OF NAT. DEF./ LAB./ NO. CA6 Date [?]/ INST. +-O.15% of/ ACC'Y: Reading/ EXP. DATE: On Request'/ DYNATAPE ON LID: 'WHEATSTONE BRIDGE/ BW 210'
Missing: N/A
Finish: CASE STAINED & VARNISHED/ BLACK TOP PANEL & WING KNOBS/ SHELLACED BRASS/ WHITE PRINTING ON PANEL
Decoration: N/A

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

Polytronics Co., Bridge, Wheatstone, circa 1930–1939, Artifact no. 1971.0067, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1971.0067.001/

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