(!!!) (Best Pair #1) 6BL7GTA GE black plates NOS 1959-1960 (50/49ma and 49/52.5ma)
$ 29.99
1 pair) 6BL7GTA GE black plates NOS "U" getter 1959-1960
1 tube) 50/49ma Gm=8250/8650
1 tube) 49/52.5ma Gm=8600/9000
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
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 (Best Pair #1) 6BL7GTA GE black plates NOS 1959-1960 (50/49ma and 49/52.5ma) "Pin It")