Pair of Sylvania 6FM8 tubes new old stock in box.
Tested with my calibrated Eico 667 tube tester scale 0-140
Tested for shorts and leakage.
Tubes tested at 112/122 140/122
Thanks for looking!
30 day free return.
We combine shipping on tubes.
Your items will be packed very well and shipped promptly.
Always glad to answer any questions.
Thanks for looking!