Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing Of Schmilsson This black plate Delco 5Y3G

This black plate Delco 5Y3G rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

6 milliamps' plate current while Tube Two drew 25

Additional Characteristics: J-slot base

Plate current measured 20

If you need robust EL34s

Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling NOS-Testing Of Schmilsson This black plate Delco 5Y3GThis 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 56 59 while Tube Two measured 58 59 where minimum (65%) is 30 30. These tubes have gray plates; copper support rods; excellent flashing and top O getters. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT