DESCRIPTION:
Condition
Tube: NOS
Box: Original Box Damage
Lettering:100%
TESTED IN A HICKOK 752A
1) Filament 2) checked for shorts, Leakage 3) Grid (Gas)
4) Emission Test
5) Dynamic Mutual Conductance
Result =725
Minimum = 400
Where NOS Value =615
AND
6) Life Test = Useful Life in Tube =100%
Since vacuum tubes were made 30 ? 70 years ago New Old Stock or Used may have cosmetic evidence of age. This includes poor print, oxidized pins, faint discoloration, or poorly box
Two testers are never the same. So this shows what I get, and what you get may be slightly 10% different.
If I state any values they are for a guide only.
No guarantee is made that any tube will test to a specific value in the buyer's tube tester, most all tubes are tested on at least two tube testers
This because of the variation in line voltage, different bias, and circuits.
Return Policy
Guarantee:100%
Contact Us
If you're in any way dissatisfied with your purchase, do not hesitate to contact us through "MY MESSAGES". We will do our best to solve it for you. We are committed to ensuring that you are completely satisfied with every transaction.
So Please DO contact us first to get a better solution before you would leave
Negative or Neutral feedback.
Shipping
times
Domestic USPS First Class Mail: 3-7 Days, includes tracking