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*

One matched pair, circa 1957-58, U.S.A. made by RCA,
type 1620 vacuum tubes
as pictured.

Condition:
No original carton, selling as used tubes

Silk-screening:
Please refer to photos

Printed designations:
1620
1620
Date codes:
57-52
58-22

*

Hickok TV-7B/U* tested

@  44      45

minimum acceptable value for a good tube:
31

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

Satisfaction Guaranteed!

*FantasticTubes !!!