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*
Bid is for one tube, U.S.A made,
as pictured.
<<<<<<<< What you see is what you get = As pictured >>>>>>>>
*
Hickok 539B* tested
Test Results
108/105
(Plate#1 / Plate#2)
minimum recommended value for a good tube:
54/54
*Hickok 539B 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 !!!
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