Relay, Wheatstone
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1978.0374.001
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- OBJECT TYPE
- POLAR/FOUR WINDING/500+500 OHMS
- DATE
- 1924
- ARTIFACT NUMBER
- 1978.0374.001
- MANUFACTURER
- ELLIOTT BROS. LTD.
- MODEL
- Unknown
- LOCATION
- London, England
More Information
General Information
- Serial #
- 5465
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- WOOD BASE / BRASS CASING, INTERNALMECHANISM COMPONENTS, BINDING POSTS & ADJUSTMENT KNOB/ COPPER/ GLASS/ WIRE/ RUBBER/ PLASTIC
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- N/A
- Width
- 13.5 cm
- Height
- 14.6 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Telegraphy
- Sub-Category
- N/A
Manufacturer
- AKA
- ELLIOTT
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
A DEVICE THAT OPENS OR CLOSES AN AUXILIARY CIRCUIT UNDER PREDETERMINEDELECTRICAL CONDITIONS IN THE MAIN CIRCUIT. IT ENABLES A WEAK CURRENT TO BE STRONGER. - Technical
-
IMPROVED THE QUALITY & CAPACITY OF LONG DISTANCE TELEGRAPH COMMUNICATION. - Area Notes
-
Unknown
Details
- Markings
- ON FACE OF MECHANISM:`ELLIOT BROTHERS/ (LONDON) LTD./ NO.5465', `500+500[OHMS]'/ `SPACING MARKING' WITH DIRECTION ARROWS OVER SIDE ADJUSTMENT KNOB/ BINDING POST MARKINGS ON BASE:`U/ T/ S/ D'. ALL MARKINGS ARE INCISED/ COTC LABEL `8978' AFFIXED TO SIDE.
- Missing
- `(D)', `(U)' & `M' BINDING POST MARKINGS/ 5 BINDING POSTS From CA of 08/12/1996 by Kevin Machan: Yes - Missing: two of the ivory inlaid letters.
- Finish
- VARNISHED WOOD BASE/ LAQUERED BRASS
- Decoration
- CIRCULAR BASE/ BEVELLED GLASS EDGE/ WHITE & BLACK POST MARKINGS,.
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
ELLIOTT BROS. LTD., Relay, Wheatstone, circa 1924, Artifact no. 1978.0374, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1978.0374.001/
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