Vacuum tube

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Ingenium, 1998.0766.001
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OBJECT TYPE: DETECTOR-RECTIFIER DIODE
DATE: Unknown
ARTIFACT NUMBER: 1998.0766.001

MANUFACTURER: MULLARD LTD.
MODEL: EA50
LOCATION: United Kingdom

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: 1.1 cm
Height: 4.9 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: MULLARD
Country: United Kingdom
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.
Function: VACUUM TUBE USED IN TELEVISION APPLICATIONS & BY MILITARY.
Technical: DETECTOR DIODE INTRODUCED BY PHILIPS IN 1939, ORIGINALLY INTENDED FOR TELEVISION USE BUT WAS PRODUCED IN LARGE NUMBERS BY MULLARD DURING WWII FOR MILITARY USE UNDER RCAF TYPE NO. VR92. MULLARD WAS ONE OF FIRST BRITISH INDEPENDENT MFR. OF VACUUM TUBES.
Area Notes: Unknown

Details

Markings: .1 WHITE LETTERING ON TUBE READS "Mullard/ EA50/ BRITISH MADE" & "8AG"/.2 BLACK & RED LETTERING ON BOX END READS "EA50/ Made in/ Great Britain/ Mullard"; WHITE, BLACK & PINK LETTERING ON BOX SIDES READING "A PRODUCT OF MULLARD LTD./ Mullard/ THE MASTER VALVE"
Missing: COMPLETE
Finish: .1 COLOURLESS TRANSPARENT GLASS; METALLICPINS/.2 BLUE EXTERIOR WITH WHITE ENDS
Decoration: .2 BLACK STRIPE ON TWO SIDES OF BOX

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

MULLARD LTD., Vacuum tube, Unknown Date, Artifact no. 1998.0766, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1998.0766.001/

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