Vacuum tube

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OBJECT TYPE
MEDIUM MU/POWER AMPLIFIER
DATE
1925
ARTIFACT NUMBER
1990.0126.001
MANUFACTURER
Western Electric Co. Inc.
MODEL
205D
LOCATION
United States of America

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
2
AKA
N/A
Patents
N/A
General Description
CARDSTOCK/ METAL, GLASS, SYNTHETIC

Dimensions

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

Length
10.6 cm
Width
5.7 cm
Height
N/A
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Vacuum Tubes
Category
Telephone
Sub-Category
N/A

Manufacturer

AKA
Western Electric
Country
United States of America
State/Province
Unknown
City
Unknown

Context

Country
North America
State/Province
Unknown
Period
Unknown
Canada
USED IN CANADA
Function
TO AMPLIFY THE AUDIO-FREQUENCY OF RADIO WAVES IN OUTPUT STAGES WHERE MODERATE POWERS ARE REQUIRED. IT MAY ALSO BE USED AS AN OSCILLATOR, MODULATOR OR RADIO FREQUENCY AMPLIFIER.
Technical
A 205A TUBE WITH A M-TYPE FLAT FILAMENT INSTEAD OF A TWISTED FILAMENT, ALSO THE FILAMENT WAS BETTER ELECTRICALLY
Area Notes
Unknown

Details

Markings
ON TUBE BASE: 'WESTERN ELECTRIC/ MADE IN U.S.A./ 205D'/ PRINTING ON BOX INCLUDES: 'Western Electric/ 205D/ VACUUM TUBE/ MADE IN U.S.A./ WARNING/ WESTERN ELECTRIC CO. INC./ WILL NOT ACCEPTTHIS/ TUBE AS UNUSED, IF RETURNED WITH THIS SEAL BROKEN'/ HANDWRITTEN ON BOX: 'In/ Nov 26th/ 1947'
Missing
From CA of 05/01/1998 by Pat Montero: No - Complete
Finish
UNCOLOURED GLASS/ BLACK BASE
Decoration
N/A

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

Western Electric Co. Inc., Vacuum tube, after 1925, Artifact no. 1990.0126, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1990.0126.001/

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