Tube tests at 110 for section 1 and 115 for section 2 on a refurbished and calibrated B&K 747b mutual conductance tester.  No shorts or grid emissions indicated.  Strong life test.

On the 747b tester readings below 55 indicate a bad tube, between 55-65 is questionable and 65-120 is a good tube.

If no box is shown they will ship in a vintage box from another manufacturer.

I don't  list tubes as true NOS.  There is no way to tell what happened in the 50 or so years

they've been around.  I will make a judgement call if they look good.

Satisfaction guaranteed.  Any issues please contact me directly for a solution.  

Free shipping on additional tubes purchased at the same time. Wait for a invoice or I can refund the difference.

Thanks for looking!