6BX7GT Sylvania branded GE black plates 1967 (EW)

1 tube) 44ma Gm=6400

1 tube) 61ma Gm=8400

Good Ma range 38-45ma

Good Gm range = 7000-7500

Recommended for

– Single Power

(Vfil=6.3V @ 1.5A, Vplate max=500V, Iplate max=60ma, Pout max = 12 watts total for both triode sides)
Typical Characteristics Class A Amp:
Vplate= 250V
Iplate= 42ma
Vgrid=
Rp= 1300 ohms
Mu= 10
Gm= 7600 mhos