Sylvania 12JT6 12JT6A Vacuum Tube NOS NIB 3rd Quarter BW33 (New 12AU7s typically test within

(New 12AU7s typically test within one standard deviation of 2200 micromhos

10-15% OF THEM ARE NOT SUITABLE FOR HIGH END AUDIO APPLICATIONS

Probably Mullard

It measured 45/40 where minimum (65%) is 40/40 and 100% is 62/62

Sylvania 12JT6 12JT6A Vacuum Tube NOS NIB 3rd Quarter BW33 (New 12AU7s typically test withinThis new old stock, new in box Sylvania 12JT6A 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 UP TO