General Electric GE 6U10 Vacuum Tube NOS NIB Symphony Orchestra new in box Sylvania Gold

new in box Sylvania Gold Brand industrial 6AL5 / 5726 / 6097 tubes tested to spec on our Paul Hart-calibrated TV7/U

They measured 30/34 and 38/37 where minimum (65%) is 25/25 and 100% is 38/38

new in box premium GE Five Star 6203 tested to spec on our Paul Hart-calibrated TV7/U

new in box GE 12L6GT tubes tested to spec on our Paul Hart-calibrated TV7/U

General Electric GE 6U10 Vacuum Tube NOS NIB Symphony Orchestra new in box Sylvania GoldThis new old stock, new in box General Electric 6U10 tube 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