Amperex World 6AQ8 ECC85 Vacuum Tube JANCHS3Q5GT Milspec This paperback book is in

This paperback book is in very good shape with the vestige of a sticker on the bottom spine area

mesh plates

new in box RCA 6LU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box GE 17KV6 tubes tested to spec on our on our Paul Hart-calibrated TV7/U

It measured 60/57 where minimum (65%) is 40/40 and 100% is 62/62

Amperex World 6AQ8 ECC85 Vacuum Tube JANCHS3Q5GT Milspec This paperback book is inThis Amperex World 6AQ8 ECC85 tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 54 66 where minimum (65%) is 50 50 and 100% is 77 77. I have played it in my Schiit Vali 2 headphone amp and it sounds great despite the fact one section tests just above the cusp and the other tests over 20% stronger than the first. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT