(!!!) (Best RCA Pair) 6BL7GTA RCA NOS 1966-1967 (36/37.5ma and 39/40ma)
By Tube World
$ 26.99
1 pair) 6BL7GTA RCA NOS 1960's
1 tube) 36/37.5ma Gm=6800/7400 (BT) 1967
1 tube) 39/40ma Gm=7100/7200 (BF) 1966
Vplate=250V
Vgrid=-9V
Good Ma = 32-40ma
Good Gm = 6200 - 7000
Recommended for
- Single Power MPX3 SE
- Cary 1610se
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
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 (Best RCA Pair) 6BL7GTA RCA NOS 1966-1967 (36/37.5ma and 39/40ma) "Pin It")