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(!!!!) (Best Pair) 6BL7GT Sylvania NOS

(!!!!) (Best Pair) 6BL7GT Sylvania NOS "D" getter 1953 and 1956 same build (36.6/37.5ma and 37/38ma)

$ 24.99

1 tube) 6BL7GT Sylvania NOS "D" getter 1953 and 1956

1 tube) 36.6/37.5ma Gm=6300/6600 (Sylvania 1953)

1 tube) 37/38ma and Gm=6500/6700 (Sylvania branded Tungsol) 1955 date on top of glass and 1956 date code on base

 

 


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)

 

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