1
/
of
8
Classic Currents
(1) Tested Very Strong Balanced Tung Sol 12AX7 Tube and Box Gray Plates 620-3
(1) Tested Very Strong Balanced Tung Sol 12AX7 Tube and Box Gray Plates 620-3
Tested and Guaranteed
Regular price
$48.95 USD
Regular price
Sale price
$48.95 USD
Shipping calculated at checkout.
Share
Couldn't load pickup availability
(1) Tested Very Strong and Balanced Tung Sol USA 12AX7 Tube with Original Box.
Date Code 620-3 (20th week of 1956).
This tube tests above NOS ratings - see below.
Balanced mutual conductance (Gm) with gray ladder plates and a top bent square getter.
The box has worn edging.
The wording on the tube is partially worn but still legible.
Tested on a calibrated Hickok TV-10 military tube tester with no shorts and no leaks with the following results:
Gm Test = 2000-2000 micromhos
Minimum pass/good = 950-950
Average NOS rating = 1425-1425
~ Please view all 8 photos ~
