Sylvania 6BL7GTvacuum tube
Tested with a calibrated TV-7D/U tube tester.
Calibration by Daniel Nelson.
Tested at: 49/53 plate current 28.4/31.9
Average new: 43/43
Minimum good: 25/25
The minimum is equal to 65% of the life of the tube.
Tested for shorts and gas.
Date code: unreadable
NOS/Used: used
Construction: black plate [] getter
Glass: clear
Base:
tight
30-day free return.
Your items will be packed very well and shipped promptly.
We combine shipping on tubes.
Always glad to answer any questions.
Thanks for looking!