(!!) (slightly microphonic) 6SL7GT RCA NOS 1950 (2.2/2.3ma) 1-2% section balance Title: 6SL7GT RCA NOS 1950

1 slightly microphonic low noise tube) 6SL7GT RCA NOS (0-09=1950)

2.2ma Gm=1600

2.3ma Gm=1600

Tested on Amplitrex

Vplate=250V, Vgrid=-2V

Good Ma range 2-2.5ma

Good Gm range 1400-1600

– Ampeg Heritage B-15
– Alessandro Itallian Greyhound jazz amp
– Alessandro Black and Tan 2005
– Almarro A318B
– Eddie Current