*FantasticTubes !!!

*

One matched pair, circa 1950s, U.S.A. made by ???????,
type 6J7G vacuum tubes 
as pictured.

Please note: one tube was labeled for Sylvania, the other was branded for Tung-Sol, but both tubes appear to have same internal structure !

Condition:
New Old Stock / New In Boxes

Silk-Screening:
Please refer to photos

Acid Etched Designations:
6J7 / G
6J7 / G

Date/Production Codes:
???
???

Tubes feature black metallic plates and bottom-mount  rectangular getters construction.

Tubes appear identical in construction.

*

Hickok TV-7D/U* checked

@ 50        52

minimum acceptable value for a good tube
31

*Hickok TV-7B/U is a mutual conductance type tube tester. It does check for mutual conductance which is a more accurate measure of tube's age.

Satisfaction Guaranteed!
*FantasticTubes !!!