Vacuum tube

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Ingenium, 1998.0767.001
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OBJECT TYPE: CLASS A AMPLIFIER DIODE-TRIODE
DATE: Unknown
ARTIFACT NUMBER: 1998.0767.001

MANUFACTURER: MULLARD LTD.
MODEL: EAC91
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; SYNTHETIC BASE; 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: 1.3 cm
Height: 5.3 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 AS CLASS A AMPLIFIER.
Technical: EXAMPLE OF DIODE-TRIODE CLASS A AMPLIFIER MADE BY MULLARD, ONE OF FIRST BRITISH INDEPENDENT MFR. OF VACUUM TUBES.
Area Notes: Unknown

Details

Markings: .1 WHITE LETTERING ON TUBE READS "Mullard/ EAC91/ BVA [LOGO]/ MADE IN/ GREAT BRITAIN" & "TG/ CV137/ KB/D"/.2 BLACK & PINK LETTERING ON BOXENDS READS "EAC91/ Mullard" & "NOT LICENSED/ FOR SALE/ IN GT. 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; METALLIC PINS; BLACK BASE/.2 BLUE EXTERIOR WITH WHITE ENDS
Decoration: .2 BLACK STRIPES ON TWO SIDES

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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. 1998.0767, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/item/1998.0767.001/

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