General Electric EI 40KG6 40KG6A PL509 Vacuum Tube Valve NOS NIB 6HG8 T05 It measured 51/56 where minimum

It measured 51/56 where minimum (65%) is 50/50 and 100% is 77/77

They have shoulder / Coke bottles and are perfect for the restorer who wants absolute historical accuracy

These six US-made 6S4A tubes were tested on our Paul Hart-calibrated TV7/U for shorts

These five Zenith 17JZ8 tubes tested to spec on our Paul Hart-calibrated TV7/U

" MAIL GETS MISPLACED

General Electric EI 40KG6 40KG6A PL509 Vacuum Tube Valve NOS NIB 6HG8 T05 It measured 51/56 where minimumThis new old stock, new in box EI MANUFACTURED, GE BRANDED 40KG6A PL509 tube tested to spec on our Paul Hart calibrated TV7 U. As you can see, it was made in Yugoslavia. 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