Siemens 6AQ8 ECC85 Vacuum Tube 6KY8 TA1 Fortunately the libretto is present

Fortunately the libretto is present and in great shape

4 (New/nominal according to M-M is 50/50 for this tube's cousin

nice flashing and decent silkscreening

D getters and short bases

Siemens 6AQ8 ECC85 Vacuum Tube 6KY8 TA1 Fortunately the libretto is presentThis Siemens MANUFACTURED, RCA BRANDED 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 64 72 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. It has a sutured top, copper support rods and a 1U7 6H date provenance code. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY