1 low noise pair) 6FQ7 Zenith by GE NOS 1977 series filaments

1 tube) 7.0/7.6ma Gm=2600/2700

1 tube) 6.8/7.5ma Gm=2600/2600

Matched on Amplitrex

Vplate=250V

Vgrid=-8V

Good Ma = 7-9ma

Good Gm = 2300-2500

Recommended for

Conrad Johnson

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