7 Sylvania 3CB6 Vacuum Tubes NOS NIB Lot Of Seven Sylvania 5AM8 NOS new in box milspec GE

new in box milspec GE USN-2B22 tube is still in its shrinkwrap

new in box US-made 2X2 / VT-119 / 879 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box RCA 3BC5 / 3CE5 tube tested to spec on our Paul Hart-calibrated TV7/U tube tester

Measurements indicated in photographs

Noise: -86

7 Sylvania 3CB6 Vacuum Tubes NOS NIB Lot Of Seven Sylvania 5AM8 NOS new in box milspec GEThese seven Sylvania made 3CB6 tubes 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 IN VALUE.