(!!!!) (Best Quad) 6BL7GTA Sylvania black plates NOS 1960's same build matched quad
$ 68.88
1 quad set) 6BL7GTA Sylvania black plates 1960's NOS same build
1 tube) 35.2/36.6ma Gm=6800/7150
1 tube) 37.8/37.2ma Gm=7200/6900
1 tube) 34.8/38.0ma Gm=7000/7300
1 tube) 36.5/37.0ma Gm=7100/7350
Good Ma used 30-35ma
Good Gm used 6500
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
Share:
 (Best Quad) 6BL7GTA Sylvania black plates NOS 1960's same build matched quad&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/3_116e9607-874e-442b-9038-62e69d3a3d43.jpg?v=1773861578){kind=link}
 (Best Quad) 6BL7GTA Sylvania black plates NOS 1960's same build matched quad "Pin It")