(!!) (slightly microphonic) 6SL7GT RCA NOS black plates gray coated glass 1952 (2.8/2.8ma) 1% section balance Title: 6SL7GT RCA NOS 1952 1% balance

1 slightly microphonic low noise tube) 6SL7GT RCA NOS black plates gray coated glass (248=1952)

2.8ma Gm=1600

2.8ma Gm=1600

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