Vacuum tube

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Ingenium, 1992.1387.001
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OBJECT TYPE: CASCADE PHOSPHOR/3 IN.
DATE: 1942
ARTIFACT NUMBER: 1992.1387.001

MANUFACTURER: RCA
MODEL: 3HP7
LOCATION: United States of America

More Information

General Information

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

Dimensions

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

Length: 25.0 cm
Width: 7.5 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Vacuum Tubes
Category: Radar
Sub-Category: N/A

Manufacturer

AKA: RCA
Country: United States of America
State/Province: Unknown
City: Unknown

Context

Country: North America
State/Province: Unknown
Period: Unknown
Canada: Unknown
Function: USED AS AN INDICATOR SCREEN IN PPI RADAR
Technical: MAJOR INNOVATION WAS THE 'P7' PHOSPHOR SCREEN INITIALLY DEVELOPED IN GREAT BRITAIN IN 1938 & 1939. THE SCREEN PROVIDED IMAGE RETENTION BETWEEN SUCCESSIVE SWEEPS OF THE ANTENNA, ESPECIALLY IN LOW AMBIENT LIGHT ENVIRONMENTS.
Area Notes: Unknown

Details

Markings: ON GLASS NEAR BASE: '3HP7'/ ON BASE: 'JAN/ CRC-3HP7/ MADE IN/ U.S.A./ V6/ RCA [LOGO]/ U [ANCHOR]/ S'/ EMBOSSED IN BASE: 'LICENSED ONLY TO EXTENT INDICATED ON CARTON'
Missing: N/A
Finish: UNCOLOURED GLASS/ GREY PAINT INSIDE GLASS BODY/ YELLOWISH PAINT INSIDE END/ BLACK BASE WITH GREY PRINTING
Decoration: N/A

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

RCA, Vacuum tube, circa 1942, Artifact no. 1992.1387, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1992.1387.001/

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