Zenith EF184 6EJ7 vacuum tube ring getter mesh plate made in UK tested strong
Tested with a calibrated TV-7D/U tube tester.
Calibration by Daniel Nelson.
Tested at 50 
Minimum 39 
Average new 65
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!