1 low noise tube) 12AY7 GE “”D”” getter like new 1956

1 section) 3.1ma Gm=1600
1 section) 2.8ma Gm=1500

Tested on Amplitrex

Good Ma = 2 – 3ma

Good Gm = 1300-1500

Recommended for

– Leak Stereo 20 1962

– Fender Bassman 1954

– Clark Amplification Anthony Wilson Model 112 Combo

– Decware ZBox

– Fender 5E8-A

– Apex 460