Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing NOS NIB Mesh Plate As you can see

As you can see

Gain (Mu (µ): 16

but their bottles are

This General Electric GE 5 Star 6080 / 6AS7 dual triode output tube was tested on our Paul Hart-calibrated TV7/U for shorts

an additional mica spacer for low microphonics

Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing NOS NIB Mesh Plate As you can seeThis 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