Vacuum tube
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1990.0126.001
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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
CITE THIS OBJECT
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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