Sounder, relay
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1978.0385.001
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- OBJECT TYPE
- TWIN/100 V/POST OFFICE RELAY (POSSIBLY)
- DATE
- 1920–1945
- ARTIFACT NUMBER
- 1978.0385.001
- MANUFACTURER
- Unknown
- MODEL
- R9 (RELAY)
- LOCATION
- Unknown
More Information
General Information
- Serial #
- 1406
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- WOOD BASE/ WOOD & GLASS COVER/ EBONITE/ STEEL/ COPPER/ METAL/ WIRE/ RUBBER/ PLASTIC, cellulose nitrate
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 19.1 cm
- Width
- 18.0 cm
- Height
- 15.0 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
- Canada
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
A DEVICE THAT OPENS OR CLOSES AN AUXILIARY CIRCUIT UNDER PREDETERMINEDELECTRICAL CONDITIONS. - Technical
-
IMPROVED QUALITY & ACCURACY OF COMMUNICATION. - Area Notes
-
Unknown
Details
- Markings
- ON RELAY TOP:`TYPE R9/ NO.1406'/ ON EBONITE PLATFORM:`LINE'; `EARTH'/OVER BACK LEFT CONNECTION:`PO RECORD'/ ON MIDDLE PLATE:`TYPE R9A/ 100 VOLTS'/ OVER BACK RIGHT CONNECTION:`OUTPUT/RECORD'/ ON RESISTORS:`1250 OHMS/ K1 VR E2/BERCO 0.15 AMPS'/ COTC LABEL `8819' AFFIXED TO BACK RIGHT OF BASE/ PLATE SCREWED TO BASE BOTTOM: 'BASEBOARD NOT TO BE REMOVED/ FOR ACCESS TO WIRING/ REMOVE EBONITE PANEL.'
- Missing
- From CA of 09/11/1996 by Kevin Machan: No - Complete
- Finish
- WOOD IS 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:
Unknown Manufacturer, Sounder, relay, between 1920–1945, Artifact no. 1978.0385, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1978.0385.001/
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