ECC84=6CW7 Siemens Germany Sonotone NOS 1959 (11.2/13.8ma) Title: ECC84

1 tube) ECC84=6CW7 Siemens Sonotone NOS (5929=1959)

1 section) 13.8ma Gm=6500

1 section) 11.2ma Gm=5700

Tested on Amplitrex

Vplate=90

Vgrid=-1.5

Good Ma 9-12ma

Good Gm 5000-6000