Vacuum tube

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Ingenium, 1998.0610.001
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OBJECT TYPE: PENTAGRID CONVERTER/HEPTODE
DATE: Unknown
ARTIFACT NUMBER: 1998.0610.001

MANUFACTURER: RCA
MODEL: 12BA7
LOCATION: Unknown

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

Dimensions

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

Length: N/A
Width: 2.1 cm
Height: 6.6 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: RCA
Country: Unknown
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. MFD. AND/OR DISTRIBUTED BY CANADIAN COMPANY.
Function: MINIATURE TYPE VACUUM TUBE USED AS CONVERTER IN AC/DC SUPERHETERODYNE CIRCUITS, ESPECIALLY THOSE FOR BROADCAST BAND.
Technical: EXAMPLE OF PENTAGRID CONVERTER VACUUM TUBE.
Area Notes: Unknown

Details

Markings: .1 WHITE LETTERING ON TUBE READS "12BA7", "R/ MXX14" & "RCA/ELECTRON/ TUBE/ RCA [LOGO]"/.2 WHITE & BLACK LETTERING ON BOX END READS "RCA/ 12BA7"; WHITE LETTERING ON BOX SIDES READS "RADIOTRON/ ELECTRON/ TUBE", "RCA VICTOR/ COMPANY, LTD./ Montreal, Canada", "World's Best-Known/ ELECTRON TUBE", "WARRANTED/ AGAINST DEFECTS/ IN WORKMANSHIP,/ MATERIALS/ AND CONSTRUCTION", "The Fountainhead of/ Modern/ Tube Development is/ RCA", WITH PATENT INFO. ON END FLAP
Missing: .2 FLAP PIECE DETACHED
Finish: .1 COLOURLESS TRANSPARENT GLASS; METALLIC PINS/.2 RED & BLACK EXTERIOR
Decoration: .2 "HIS MASTER'S VOICE" LOGO ON 4 SIDES OF BOX

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

RCA, Vacuum tube, Unknown Date, Artifact no. 1998.0610, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1998.0610.001/

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