Vacuum tube

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OBJECT TYPE
IF/9 PIN
DATE
1948
ARTIFACT NUMBER
1999.0212.001
MANUFACTURER
ROGERS ELECTRONIC TUBES LTD.
MODEL
VR91
LOCATION
Canada

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
METAL CASING; GLASS & METAL COMPONENTS.

Dimensions

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

Length
4.0 cm
Width
4.0 cm
Height
7.5 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Vacuum Tubes
Category
Radar
Sub-Category
N/A

Manufacturer

AKA
ROGERS
Country
Canada
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Ontario
Period
THIS TYPE OF TUBE PRODUCED LATE 1930S+. THIS TUBE PRODUCED BEFORE 1948.
Canada
EXAMPLE OF VR 91 RECEIVING TUBE, SOMETIMES REFERRED TO AS "THE TUBE WHICH WON THE WAR". IT WAS MFD BY MANY FIRMS IN U.K., CANADA & EVENTUALLY THE U.S.. THIS EXAMPLE WAS PRODUCED BY ROGERS, CANADA. (REF. 1) THIS TUBE WAS PREVIOUSLY OWNED BY RESEARCH ENTERPRISES LTD., TORONTO & USED AT NRC RADIO FIELD STATION, OTTAWA.
Function
GENERAL PURPOSE VACUUM TUBE USED IN RADAR RECEIVERS.
Technical
HIGH SLOPE PENTODE SUITABLE FOR RADIO AND INTERMEDIATE FREQUENCY AMPLIFIER USE. IT WAS USED IN EARLY BRITISH CHL RADAR RECEIVERS: IT'S VALUE AS A GENERAL 'WORKHORSE' TUBE IN PULSE GENERATORS, MULTIVIBRATORS, ETC. RESULTED IN IT'S WIDESPREADADOPTION IN ALMOST ALL GROUND & AIRBORNE RADAR EQ.. AS WELL AS IN NAVIGATION AND BLIND BOMBING SETS. WITH THE POSSIBLE EXCEPTION OF THE VR 65 IT WAS THE MOST WIDELY USED RECEIVER TUBE IN BRITISH RADAR. (REF. 1- DONOR HISTORY)
Area Notes
Unknown

Details

Markings
" A [crown logo] M/ VR91/ 10E/92/ C [up arrow symbol]" printed in black on one side of tube jacket; "MADE IN CANDA/ BY/ ROGERS ELECTRONIC/ TUBES LIMITED/ J/4" printed on opposing side.
Missing
NONE.
Finish
DULL SILVER METAL SHELL ENCLOSES TUBE.
Decoration
N/A

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

ROGERS ELECTRONIC TUBES LTD., Vacuum tube, before 1948, Artifact no. 1999.0212, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1999.0212.001/

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