Tung-Sol 17BQ6 17BQ6GTB 17CU6 Vacuum Tube NOS NIB JANCKR2C22 Milspec Tube One measured 72/74 while

Tube One measured 72/74 while Tube Two (Zenith-LABELED) measured 74/73 where minimum (65%) is 50/50 and 100% is 77/77

milspec Sylvania JHS-12AT7WA (12AT7 / ECC81) dual triode was tested on our Paul Hart-calibrated TV7/U for shorts

These tubes have mediocre-to-fair and nice flashing

These six US-made 7B8 tubes tested as follows on our Paul Hart-calibrated TV7/U where minimum (65%) is 29 and 100% is 45:

It has 9AX date codes

Tung-Sol 17BQ6 17BQ6GTB 17CU6 Vacuum Tube NOS NIB JANCKR2C22 Milspec Tube One measured 72/74 whileThis new old stock, new in box Tung Sol 17BQ6GTB 17CU6 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