Vacuum tube

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Ingenium, 1966.0332.001
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OBJECT TYPE: DETECTOR/AMPLIFIER
DATE: 1926–1927
ARTIFACT NUMBER: 1966.0332.001

MANUFACTURER: Canadian General Electric Co.
MODEL: 227A
LOCATION: Canada

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: PAPERSTOCK BOX/ GLASS ENVELOPE/ METAL & SYNTHETIC WORKING PARTS/ SYNTHETIC BASE

Dimensions

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

Length: 5.8 cm
Width: 5.7 cm
Height: 13.0 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: General Electric
Country: Canada
State/Province: Unknown
City: Unknown

Context

Country: Unknown
State/Province: Unknown
Period: Unknown
Canada: A CANADIAN MADE AC TUBE THAT WAS A VARIANT OF A U.S. TUBE
Function: TO ALLOW FOR LOW GRADE AMPLIFICATION & DETECTION
Technical: FIRST TUBE THAT FILAMENT COULD BE OPERATED ON ALTERNATING CURRENT/ ONE OF THE FIRST TUBES TO USE A HEATER (FILAMENT)
Area Notes: Unknown

Details

Markings: TUBE: TOP- 'GENERAL ELECTRIC RADIOTRON/ GE 227A/ [LOGO]'/ BOX: PRINTING INCLUDES: '[LOGO]/ GENERAL/ ELECTRIC/ RADIOTRON/ GE-227A/ DETECTOR and AMPLIFIER/ A.C. HEATER/ HEATER VOLTS (A.C.) 2.5/ HEATER AMPERES 1.75/ PLATE VOLTS 180/ (MAXIMUM)/ CANADIAN/ GENERAL ELECTRIC CO/ Limited'/ 'PATENTED/1914 1920 1925/ 1915 1921 1926/ 1916 1922 1927/ 1917 1923 1928/ 1919 1924'
Missing: N/A
Finish: GREEN, BLACK & WHITE PRINTING ON BOX/ UNCOLOURED GLASS/ BLACK BASE
Decoration: N/A

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

Canadian General Electric Co., Vacuum tube, circa 1926–1927, Artifact no. 1966.0332, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1966.0332.001/

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