Vacuum tube
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1966.0383.001
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- OBJECT TYPE
- SHARP CUTOFF/RF AMPLIFIER
- DATE
- 1931
- ARTIFACT NUMBER
- 1966.0383.001
- MANUFACTURER
- Unknown
- MODEL
- 57
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS/ METAL/ SYNTHETIC/ PAPER
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 12.3 cm
- Width
- 3.8 cm
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Vacuum Tubes
- Category
- Receiving
- Sub-Category
- N/A
Manufacturer
- AKA
- Unknown
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- North America
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
USED AS A BIASED DETECTOR IN A-C RECEIVERS DESIGNED FOR ITS CHARACTERISTICS; ALSO AS A LOW SIGNAL-INPUT, SCREEN-GRID AMPLIFIER TUBE & AS AN AUTOMATIC VOLUME CONTROL TUBE - Technical
-
FIRST 2.5V R.F. PENTODE ALONG WITH 58 DEVELOPED IN THE U.S./ ALSO THESE TYPES WERE THE FIRST TO USE THE 'ST' STYLE DOMED BULBS - IN THIS STYLE OF CONSTRUCTION THE ELEMENT ASSEMBLY WAS BRACED AT ITS UPPER EDGE BY MICA SPACERS BEARING AGAINST THE NARROWER TOP SECTION OF THE BULB - Area Notes
-
Unknown
Details
- Markings
- ETCHED ON GLASS: '57/ DEM'/ PRINTED ON BASE: 'MADE FOR/ 'Westinghouse'/ PRINTED ON BOX INCLUDES: 'Westinghouse/ CANADIAN/ WESTINGHOUSE [LOGO]/ RADIOTRON/Micro-Sensitive/ radio tubes improve/ the performance/ of any radio set/ [GUARANTEE ON SIDE]/ RADIOTRON/ 57'
- Missing
- N/A
- Finish
- UNCOLOURED GLASS/ BLACK BASE WITH WHITE PRINTING/ RED & BLACK BOX
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Unknown Manufacturer, Vacuum tube, circa 1931, Artifact no. 1966.0383, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1966.0383.001/
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