Lighting control, photoelectric
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1992.1752.001
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- OBJECT TYPE
- N/A
- DATE
- 1941
- ARTIFACT NUMBER
- 1992.1752.001
- MANUFACTURER
- Weston
- 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
- METAL, PAPER SEAL, FIBRE COVERED WIRES, PROBABLY GLASS 'WINDOW'
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 15.4 cm
- Width
- 5.2 cm
- Height
- 22.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Lighting Technology
- Category
- Lighting accessories
- Sub-Category
- N/A
Manufacturer
- AKA
- Weston
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
TO AUTOMATICALLY CONTROL STREETLIGHTS TO TURN ON WHEN IT GETS DARK & OFF AGAIN WHEN SUFFICIENTLY LIGHT OUT - Technical
-
PREVIOUS PHOTOELECTRIC CONTROLS USED AMPLIFING TUBES & PHOTOELECTRIC TUBES/ DEVELOPMENT OF A STABLE CADMIUM SULFIDE LIGHT-SENSITIVE CELL MADE IT POSSIBLE TO ELIMINATE THE PHOTOTUBE/ BETTER QUALITY TRANSISTORS MADE IT POSSIBLE TO INCORPORATE TRANSISTORS WITH A CADMIUM SULFIDE CELL WHICH RESULTED IN A MUCH SMALLER UNIT - Area Notes
-
Unknown
Details
- Markings
- CAST INTO CASING 'WESTON' & ON BACK 'USE WITH/ MOD 709 SER 1245'/ ON PTS VISIBLE INSIDE LOGO 'W/ I'
- Missing
- N/A
- Finish
- CASING PAINTED GREY (POSSIBLY NOT ORIGINAL), CLEAR WINDOW, PTS INSIDE ARE SILVERTONE & BRASSTONE
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Weston, Lighting control, photoelectric, circa 1941, Artifact no. 1992.1752, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1992.1752.001/
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