Relay
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1978.0369.001
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- OBJECT TYPE
- SUBMARINE/REED/TWIN
- DATE
- 1920–1945
- ARTIFACT NUMBER
- 1978.0369.001
- MANUFACTURER
- SPHERE ELECTRICAL INSTRUMENT CO. LTD.
- MODEL
- R7
- LOCATION
- London, England
More Information
General Information
- Serial #
- 699
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- WOOD BASE/ WOOD & GLASS COVER/ STEEL/ BRASS/ BAKELITE/ RUBBER/WIRE
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 23.0 cm
- Width
- 16.8 cm
- Height
- 19.3 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Telegraphy
- Sub-Category
- N/A
Manufacturer
- AKA
- SPHERE
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
A DEVICE THAT IS PART OF A REGENERATOR SYSTEM, OPERATED FROM A VIBRATING REED. RELAY OPENS OR CLOSES AN AUXILIARY CIRCUIT UNDER PREDETERMINED ELECTRICAL CONDITIONS. - Technical
-
IMPROVED THE QUALITY & ACCURACY OF COMMUNICATION - Area Notes
-
Unknown
Details
- Markings
- MECHANISM SIDE: `REED RELAY/ TYPE R7/ SPHERE ELECTRICAL INST. CO. LTD./ LONDON. N.8.'/ ON TOP: 'SERIAL NO./ 699'/ REMNANT OF A COTC LABEL UNDER BACK EDGE OF MECHANISM ON BASE/ APPLIED RAISED METAL `8' ON CONNECTION PLUG.
- Missing
- \ From CA of 08/13/1996 by Kevin Machan: Undetermined
- Finish
- BASE & COVER SIDES ARE VARNISHED & STAINED A REDDISH COLOUR/ SOME COMPONENTS PAINTED BLACK
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
SPHERE ELECTRICAL INSTRUMENT CO. LTD., Relay, between 1920–1945, Artifact no. 1978.0369, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1978.0369.001/
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