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(!!!) (Best Overall Pair) 6BG6GA GE NOS 1974 (85ma and 87ma)

(!!!) (Best Overall Pair) 6BG6GA GE NOS 1974 (85ma and 87ma)

$ 19.99

1 matched pair) 6BG6GA GE black plate NOS (KI) 1974

1 tube) 87ma Gm=6600 slightly tilted glass

1 tube) 85ma Gm=6500 

  

Tested on Amplitrex

Vplte=250V

Vscreen=250V

Vgrid=-15V

Good Ma = 70-75ma

Good Gm = 5500-6000 

See more: vacuum tube
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