Sylvania 40KD6 Vacuum Tube Philips Nonal I am playing them in

I am playing them in my Sound Craftsmen RC-2 monoblocks at 6

It measured 60/57 where minimum (65%) is 40/40 and 100% is 62/62

29 and 30 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25 and 100% is 38

If you want them both

They were made

Sylvania 40KD6 Vacuum Tube Philips Nonal I am playing them inThis Sylvania 40KD6 tube tested 71 on our Paul Hart calibrated TV7 U where minimum is 54 and new is 100. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP