Vacuum tube

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Ingenium, 1998.0776.001
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OBJECT TYPE: GRID CONTROL RECTIFIER THYRATRON/TETRODE
DATE: 1945
ARTIFACT NUMBER: 1998.0776.001

MANUFACTURER: RCA
MODEL: JRC-2D21
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: .1 GLASS ENVELOPE; METAL PINS & PARTS/.2 CARDBOARD BOX

Dimensions

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

Length: N/A
Width: 1.8 cm
Height: 5.3 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

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

Manufacturer

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

Context

Country: Canada
State/Province: Ontario
Period: Unknown
Canada: FROM COLLECTION OF VACUUM TUBES DONATED TO CSTM BY CANADIAN GOVERNMENT DEPARTMENT NATURAL RESOURCES CANADA.
Function: VACUUM TUBE USED AS GRID CONTROL RECTIFIER.
Technical: EXAMPLE OF RECTIFIER THYRATRON.
Area Notes: Unknown

Details

Markings: .1 WHITE LETTERING ON TUBE READS "JRC-2D21", "MADE IN/ U.S.A./ V4E" & "RCA [LOGO]/.2 BLACK LETTERING ON SIDES READS "U.S. NAVY/ Mfgd. By/ Radio Corp./ Of America/ Acpt/ July 1945" & "U.S. ARMY/ JRC 2D21"; BUFF LETTERING ON GREY BOX ENDREADS "TRADE MARKS/ and RADIOTRON/ REGISTERED/ U.S. PAT. OFF." & "GUARANTEE, U.S./ PATENTS AND LICENSE / NOTICE INSIDE; BLACK PRINTED LICENSE NOTICE & "Box Patented U.S./ Pat. No. 2,125,312/ R-SLD5-5/ (7-43)
Missing: COMPLETE
Finish: .1 COLOURLESS TRANSPARENT GLASS; METALLIC PINS/.2 BUFF COLOURED BOX
Decoration: N/A

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

RCA, Vacuum tube, 1945, Artifact no. 1998.0776, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1998.0776.001/

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