Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing Gebraucht 9U8 (Minimum (65%) is 46

(Minimum (65%) is 46

58 and 67 where minimum (65%) is 48

72 and 88 where minimum (65%) is 33 and 100% is 50

5 milliamps/2310 micromhos for Tube One and 24

Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing Gebraucht 9U8 (Minimum (65%) is 46This 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 67 66 while Tube Two measured 70 68 where minimum (65%) is 30 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