Matched Pair Canadian General Electric GE 12SN7 12SN7GT Vacuum Tubes Valves Black Plate NOS NIB 7476 7676 7676 clear recording with sparking highs

clear recording with sparking highs and nice bass

new in box RCA 6JH6 tube tested to spec on our Paul Hart-calibrated TV7/U

It is a faithful transfer of the 78 sources and

This pressing has lightly-moderate surface noise audible in pianissimo-piano passages and barely-audible in mezzo forte passages and louder

Matched Pair Canadian General Electric GE 12SN7 12SN7GT Vacuum Tubes Valves Black Plate NOS NIB 7476 7676 7676 clear recording with sparking highsThis new old stock, new in box matched pair of Canadian GE black, T plate 12SN7GT dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they tested as follows: Tube One: 83 84 Tube Two 85 86 These tubes have steel support rods; black T plates; rectangle top mica spacers with chevrons; D getters and short bases. I am playing them as I write in my Alan Eaton single ended triode