Vacuum tube

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Ingenium, 1998.0612.001
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OBJECT TYPE: MEDIUM MU TRIODE
DATE: 1957
ARTIFACT NUMBER: 1998.0612.001

MANUFACTURER: Marconi
MODEL: 12J5
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: .1 METAL CASING & PINS, SYNTHETIC BASE/.2 CARDBOARD

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: N/A
Width: 3.3 cm
Height: 6.5 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: FROM COLLECTION OF VACUUM TUBES DONATED TO CSTM BY CANADIAN GOVERNMENT DEPARTMENT NATURAL RESOURCES CANADA. MFD. AND/OR DISTRIBUTED BY CANADIAN COMPANY.
Function: FROM INFO. FOR 6J5 & 12J5-GT: METAL TYPE VACUUM TUBE USED AS DETECTOR, AMPLIFIER OR OSCILLATOR IN RADIO EQUIPMENT.
Technical: EXAMPLE OF MEDIUM MU TRIODE VACUUM TUBE.
Area Notes: Unknown

Details

Markings: .1 RED LETTERING ON CASING READS "12J5", "Marconi [SCRIPT]/ RADIOTRON/ RVC [LOGO]" & "QX"; INCISED "12J5V" ON TUBE SIDE; RAISED LETTERING ON UNDERSIDE OF BASE READS "LICENSED ONLY TO EXTENT/INDICATED ON CARTON"/.2 BLACK LETTERING ON BOX END READS/ 12J5/ MARCONI/ RVC [LOGO]/ 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"; "CARTON/ PATENT NO./ 542,977"
Missing: COMPLETE
Finish: .1 BLACK CASING & BASE; METALLIC PINS/.2 RED & BLACKEXTERIOR
Decoration: .2 JAGGED WHITE STRIPE; WHITE STYLIZED GLOBE

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If you choose to share our information about this collection object, please cite:

Marconi, Vacuum tube, after 1957, Artifact no. 1998.0612, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1998.0612.001/

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