Matched Pair Sylvania 6AU6 6AU6A Vacuum Tubes Valves May 22 2025 new in box Siemens EBF89

new in box Siemens EBF89 / 6DC8 tube tested to spec on our Paul Hart-calibrated TV7/U

Both tubes have gray

harp-shaped getters and anode radiators for cooler operation and longer tube life

new in box Japanese-made 26LX6 tube tested to spec on our Paul Hart-calibrated TV7/U

almost-perfectly-matched pair of Ken-Rad 6SJ7s was tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair Sylvania 6AU6 6AU6A Vacuum Tubes Valves May 22 2025 new in box Siemens EBF89This matched pair of Sylvania 6AU6A tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 72 for Tube One and 76 for Tube Two where minimum (65%) is 58. These tubes have top, D getters; gray plates and excellent flashing. I am playing them in my Musical Paradise MC 3 single ended integrated amplifier (with adapters, not included) with Aimee Mann's seminal