(!!!) (Best Pair) 6BL7GTA GE NOS 1981 (36.5/38.5ma and 37.5/38.2ma)

(!!!) (Best Pair) 6BL7GTA GE NOS 1981 (36.5/38.5ma and 37.5/38.2ma)

By Tube World

$ 26.99

1 pair) 6BL7GTA GE gray plates NOS 1981 (FS)

1 tube) 36.5/38.5ma Gm=7400/7700 

1 tube) 37.5/38.2ma Gm=7900/7800 


Matched on Amplitrex

Recommended for

- Single Power MPX3 SE
- Cary 1610se

(Vfil=6.3V @ 1.5A, Vplate max=500V, Iplate max=60ma, Pout max = 12 watts total for both triode sides)
The 6BL7GTA is interchangeable with a 6BL7GT but differs from it in having
an improved section 1 for increased life as an oscillator, and controlled zero-bias
plate current in both sections
Typical Characteristics Class A Amp:
Vplate= 250V
Iplate= 42ma
Vgrid= -9
Rp= 2150 ohms
Mu= 15
Gm= 6200 for 6BL7 (RCA manual 1953) and 7000 mhos for 6BL7GTA (GE Manual 1957)


See more: vacuum tube
Scroll to top