(PAIR) JAN-5725W=6AS6 GE gray plate NOS 1986 (4.2ma and 4.1ma) (strong Gm)

1 matched pair) JAN-5725W=6AS6 GE gray plate NOS 1986

1 tube) 4.2ma Gm=3000

1 tube) 4.1ma Gm=2900

NOS mA range 4.2-5.2mA+

NOS Gm 2500-3200+