*FantasticTubes 🎷   🎶

*

One tube, circa 1979,USA made by Sylvania,
type JAN-12AX7WA (ECC83) vacuum tube
as pictured.
<<<<< As pictured = What you see is what you get. >>>>>

Silk-Screening:
Nice, Please see photos

Painted Designation(Green):
JAN-12AX7WA

Date Code:
79-39

Tube features 17mmLong-gray-ridge-plates and a 'Halo-Ring' getter on top.

*

Hickok TV-7B/U* tested

Test Results
Tube#1        62/64                 

minimum recommended (65% of New) value for a good tube
32/32

  (Triode#1 / Triode#2)  

*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 !!!
🎷   🎶