One12BA6 vacuum tubes various brands tested good to strong.
Tested with a calibrated TV-7D/U tube tester.
Calibration by Daniel Nelson.
Tested at 50 69 69 71 68
Average new: 68
Minimum good: 41
The minimum is equal to 65% of the life of the tube
Strongest tube will be shipped first.
30-day free return.
We combine shipping $1.00 for each extra tube purchase.
Your items will be packed very well and shipped promptly.
Always glad to answer any questions.
Thanks for looking!