Vacuum tube

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Ingenium, 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://collection.ingeniumcanada.org/en/id/1998.0651.001/

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