Service Master 6GH8A Vacuum Tube Tested 100%
Condition
Tube: NOS
Some boxes are brittle, or have imperfections, starting to crumble
TESTED IN A HICKOK 6000
1) Filament 2) checked for shorts, Leakage 3) Grid (Gas)
4) Emission Test
5) Dynamic Mutual Conductance
Result on
Tube 1 (3100/4800 GM ) Minimum Value = 1950/2535
Where NOS Value = 3000/3900
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
International USPS First Class Mail: 3-5 weeks but sometimes
longer, without tracking
Please eBay shipping
estimates is not Accurate
Canada $14.98 and each additional $2.00
Other $18.98 and each additional $2.00??
Request an invoice
Please Note:
Buyer is
responsible for all taxes, duties, and import fees. Please contact your local
customs office for costs.