Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing NOS NIB Mesh Plate Gain (Mu (µ): 16

Gain (Mu (µ): 16

ONE IS MISSING

an additional mica spacer for low microphonics

new in box RCA 8CX8 tube tested to spec on our Paul Hart-calibrated TV7/U

As you can see

Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing NOS NIB Mesh Plate Gain (Mu (µ): 16This new old stock testing matched pair of GE 12BH7A dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 58 60 while Tube Two measured 60 60 where minimum (65%) is 30. These tubes have gray plates; copper support rods; excellent flashing; top harp lyre getters and black anode radiators for improved cooling and longer tube life. WE HAVE SCORES OF THOUSANDS OF