Vacuum tube
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1984.0179.001
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- OBJECT TYPE
- BROADCASTING/MERCURY VAPOUR
- DATE
- 1935–1942
- ARTIFACT NUMBER
- 1984.0179.001
- MANUFACTURER
- ENGLISH ELECTRIC VALVE CO. LTD.
- MODEL
- AH205 857B
- LOCATION
- England
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS ENVELOPE/ PLATED COPPER ANODE CAP/ PLATED COPPER BASE, PROBABLY TANTALUM ANODE/ METAL FILAMENT SUPPORT/SHIELD STRUCTURE/ TUNGSTEN FILAMENT/ MERCURY/ WOOD SUPPORT FRAME WITH CLOTH STRAPS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 35.7 cm
- Width
- 35.7 cm
- Height
- 64.6 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Vacuum Tubes
- Category
- Transmitting
- Sub-Category
- N/A
Manufacturer
- AKA
- ENGLISH ELECTRIC
- Country
- England
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Worldwide
- State/Province
- Unknown
- Period
- 1937-1970
- Canada
-
Unknown - Function
-
USED IN THE HIGH VOLTAGE POWER SUPPLY OF A TRANSMITTER TO CONVERT ALTERNATING CURRENT TO DIRECT CURRENT. DEPENDING ON THE DESIGN, A MINIMUM OF TWO TUBES OF THIS TYPE WOULD BE USED - Technical
-
TYPE SAMPLE - Area Notes
-
Unknown
Details
- Markings
- PRINTEDON GLASS: 'ENGLISH ELECTRIC VALVE CO. LTD. MADE IN ENGLAND [LOGO IN CENTRE]/ AH205 857B/ [?]729/ 28'/ HANDWRITTEN ON THE FILAMENT SUPPORT SYSTEM: 'Q 1263/ YE'/ STENCILED ON CASE: 'MADE IN UK/ AH.205/ 857B/ GLASS/ KEEP UPRIGHT/ CRT. NO./ 2903/ L12143'/ LABEL ON CRATE TOP: 'ORA GROUP-C/ MERCURY VAPOUR/ TUBES/ 1 GRAM'
- Missing
- N/A
- Finish
- EXTERNAL METAL, PLATED/ GLASS AND OTHER MATERIALS, NATURAL FINISH/ UNCOLOURED GLASS
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
ENGLISH ELECTRIC VALVE CO. LTD., Vacuum tube, between 1935–1942, Artifact no. 1984.0179, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1984.0179.001/
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