Two Sylvania 12AX7 ECC83 vacuum tubes
The tubes are very similar in construction
Tested with a calibrated TV-7D/U tube tester.
Calibration by Daniel Nelson.
Tested at: 43/40 44/44
Average new: 53/53
Minimum good: 32/32
The minimum is equal to 65% of the life of the tube.
Tested for shorts and gas.
Date code: -
NOS/Used: used
Construction: gray plate round getter
Glass: clear chrome top
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!