Valkyrie Tom Cruise DVD 2GK5 2FQ5 2FQ5A new in box Sylvania 6SH7

new in box Sylvania 6SH7 tubes tested to spec on our Paul Hart-calibrated TV7/U

It measured 29 and 63/37 where minimum (65%) is 24 40/40 and 100% is 36 and 62/62

new in box National Union 35/51 tube tested to spec on our Paul Hart-calibrated TV7/U

it was made in Yugoslavia

This Amperex 4GK5 tube tested to spec on our Jackson 648 Mutual Conductance tester

Valkyrie Tom Cruise DVD 2GK5 2FQ5 2FQ5A new in box Sylvania 6SH7This new old stock, new in box Tung Sol 6SF5GT tested to spec on our Paul Hart calibrated TV7 U. 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 TO $250