Amperex ECC189 6ES8 Vacuum Tube For Your Schiit Life Beyond Earth Both tubes have gray

Both tubes have gray

They have dimpled

Tube One measured 55 while Tube Two measured 60

I am playing them in my ArtSound single-ended 805 monoblocks with Steely Dan’s seminal "Aja" album

RCA-BRANDED 6GB5 tube tested to spec on our Paul Hart-calibrated TV7/U

Amperex ECC189 6ES8 Vacuum Tube For Your Schiit Life Beyond Earth Both tubes have grayThis West German Amperex MANUFACTURED, RCA LABELED ECC189 6ES8 dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 60 50 where minimum (65%) is 50 50 and 100% is 77 77. This tube has steel support rods; an O getter IX =53 and matte gray plates. As I write, I am playing Pink Floyd's Green Is The Colour" in my Schiit Audio Vali 2 headphone amplifier and it sounds