Unbranded 12AU7 vacuum tube graphic are worn off unreadable
Tested with a calibrated TV-7D/U tube tester.
Calibration by Daniel Nelson.
Tested at: 102/101 plate current 12.6/12.5
Average new: 84/84
Minimum good: 56/56
The minimum is equal to 65% of the life of the tube.
Tested for shorts and gas.
Date code: -
NOS/Used: used
Construction: short gray plate square getter
Glass: clear
Base: -
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!