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*FantasticTubes🎷 🎶
*
One matched pair,circa1966,U.S.A.made bySylvania,
typeJHS-5963vacuum tubes
as As pictured = The tubes you see are the tubes you get! >>>>>>>
Condition:
Lightly used tubes
Silk-Screening:
Please see the photos
Acid Etched Designations:
5963
5963
Date Codes:
66-15
66-15
Tubes featuregrey plates and a top-mounted \'Halo-Ring\' gettersconstruction.
Tubes appear to have same internal structure.
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HickokTV-7B/U*tested as5963
Test Results
Tube#1 89/85
Tube#2 87/86
minimum recommended (65% of NEW) value for a good tube
50/50
(Triode#1 /Triode#2)
*HickokTV-7B/Uis a mutual conductance(Gm)type tube tester. It does check for mutual conductance which is a moreaccurate measure of tube\'s age.
Satisfaction Guaranteed!
*FantasticTubes !!!
🎷🎶