Raytheon Type 55 vacuum tube tested at new old stock
Tested with a calibrated TV-7D/U tube tester.
Calibration by Daniel Nelson.
Date code: -
NOS/Used: used?
Construction: black plate foil getter
Glass: clear no burn marks
Base: tight
Tested at: 79
Average
new 62
Minimum good 37
The minimum is equal to 65% of the life of the tube
Tested for shorts and gas.
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!