Box, variable resistance

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Ingenium, 1967.0731.001
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OBJECT TYPE
STEP SWITCH/ADJUSTABLE
DATE
1940
ARTIFACT NUMBER
1967.0731.001
MANUFACTURER
Unknown
MODEL
Unknown
LOCATION
Unknown

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
WOODEN CASE/ BAKELITE TOP PLATE/ BRASS STEP SWITCHTERMINALS AND WIPERS/ BRASS CONTACT BARS AND BRIDGING PLUGS/ PERFORATED BRASS VENTILATION SCREENS, BOBBIN RESISTOR ELEMENTS AND MISC. INTERNAL WIRING/ SWITCH KNOBS, BAKELITE/ BRASS MOUNTING TABS

Dimensions

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

Length
17.5 cm
Width
11.5 cm
Height
10.0 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Communications
Category
Telegraphy
Sub-Category
N/A

Manufacturer

AKA
Unknown
Country
Unknown
State/Province
Unknown
City
Unknown

Context

Country
Worldwide
State/Province
Unknown
Period
1935-1945
Canada
USED IN EARLY UK-CANADA SUBMARINE TELEGRAPH CIRCUITS
Function
PROBABLY USED AS AN ARTIFICIAL LINE ON A DIFFERENTIAL DUPLEX TELEGRAPH REPEATER ON SUBMARINE CABLE CIRCUIT.
Technical
Unknown
Area Notes
Unknown

Details

Markings
DECAL ON RIGHT FRONT SIDE: 'COTC T. 9289'/ BOTTOM: 'G.P.O.D.15./ 234./ D.'/ CALIBRATIONS AROUND DIALS
Missing
From CA of 09/03/1996 by Kevin Machan: Undetermined
Finish
CASE, DARK ORANGE BROWN STAIN AND VARNISH/ VENTILATION SCREEN, FLAT BLACK/ TOP PLATE, NATURAL BLACK BAKELITE/ KNOBS, BLACK BAKELITE
Decoration
N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Box, variable resistance, circa 1940, Artifact no. 1967.0731, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1967.0731.001/

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