Vacuum tube
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1998.0651.001
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- OBJECT TYPE
- DETECTOR TWIN DIODE
- DATE
- 1957
- ARTIFACT NUMBER
- 1998.0651.001
- MANUFACTURER
- Marconi
- MODEL
- 5726/6AL5W
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- .1 GLASS ENVELOPE; METAL PINS & PARTS/.2 CARDBOARD BOX
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- N/A
- Width
- 1.8 cm
- Height
- 4.4 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Vacuum Tubes
- Category
- Receiving
- Sub-Category
- N/A
Manufacturer
- AKA
- Marconi
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- Unknown
- Canada
-
CANADIAN MADE ITEM FROM COLLECTION OF VACUUM TUBES DONATED TO CSTM BY CANADIAN GOVERNMENT DEPARTMENT NATURAL RESOURCES CANADA. - Function
-
MINIATURE, HIGH-PERVEANCE TYPE VACUUM TUBE USED AS DETECTOR IN FM & TELEVISION CIRCUITS, & IS ESPECIALLY USEFUL AS RATIO DETECTOR IN AC-OPERATED FM RECEIVERS. - Technical
-
EXAMPLE OF MILITARY-INDUSTRIAL VERSIONOF TWIN DIODE VACUUM TUBE, EQUIVALENT TO COMMERCIAL 6AL5. EACH DIODE CAN BE USED INDEPENDENTLY OF OTHERS OR COMBINED IN PARALLEL OR FULL-WAVE ARRANGEMENT. RESONANT FREQUENCY OF EACH UNIT IS APPROXIMATELY 700 MEGACYCLES. - Area Notes
-
Unknown
Details
- Markings
- .1 WHITE LETTERING ON GLASS READS "BO/ Marconi [SCRIPT]/ MADE IN CANADA" & "5726/ 6AL5W"/.2 BLACK LETTERING ON BOX END READS "5726/ MARCONI/ RADIOTRON"; BLACK & WHITE LETTERING ON BOX SIDES READS "Marconi [SCRIPT]/ RVC [LOGO]/ CANADIAN MARCONI/ COMPANY/ RADIOTRON", "MARCONI/ RVC [LOGO]/ RADIOTRON/ THE RVC [LOGO] MONO-/ GRAM IS THE/ MARK OF UNEX-/ CELLED RADIO/ TUBE DESIGN/ AND EFFICIENCY/ CANADIAN MARCONI COMPANY"; "CARTON/ PATENT NO./ 542,977"
- Missing
- COMPLETE
- Finish
- .1 COLOURLESS TRANSPARENT GLASS; METALLIC PINS/.2 RED & BLACK EXTERIOR
- Decoration
- .2 JAGGED WHITE STRIPE; WHITE STYLIZED GLOBE ON SIDES
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Marconi, Vacuum tube, after 1957, Artifact no. 1998.0651, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1998.0651.001/
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