Two Ken Rad CKR-6SJ7 one GE 6SJ7 one Sylvania 6SJ7 vacuum tubes
Tested with a calibrated TV-7D/U tube tester.
Calibration by Daniel Nelson.
Tested at:67 68 60 67
Average new: 66
Minimum good: 40
The minimum is equal to 65% of the life of the tube.
Tested for shorts and gas.
Date code: -
NOS/Used: used
Construction:-
Glass: metal
Base:
octal
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!