7 Sylvania 3CB6 Vacuum Tubes NOS NIB Lot Of Seven Sylvania 5AM8 NOS these are what you're looking

these are what you're looking for

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

Measurements indicated in photographs

New nominal is within one standard deviation of 1900

7 Sylvania 3CB6 Vacuum Tubes NOS NIB Lot Of Seven Sylvania 5AM8 NOS these are what you're lookingThese 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.