Matched Pair Tung-Sol 12SL7 12SL7GT Vacuum Tubes Valves NOS NIB 1X2B harp getter with sheet) measured

harp getter with sheet) measured 44 while Tube Two (12B4A

BECAUSE OF THE BIZARRE

This RCA 6HJ5 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box GE 6BD6 tubes tested to spec on our Paul Hart-calibrated TV7/U

6SL7s can sub for 6SN7s in some amps but I do not recommend experimenting as they have very-different bias voltages

Matched Pair Tung-Sol 12SL7 12SL7GT Vacuum Tubes Valves NOS NIB 1X2B harp getter with sheet) measuredThis new old stock, new in box matched pair of Tung Sol 12SL7 12SL7GT dual triodes was tested on our Pau Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 40 40 for Tube One and 42 46 for Tube Two where minimum (65%) is 32 32. These tubes have beautiful flashing, top, harp getters, crenalated mica spacers and gray, ladder plates. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT