Z729=EF86 GEC UK mesh-plate NOS "D" getter halo 1950's

2.9ma

Gm=2000

Good Ma range = 2.5-3.5ma

Good Gm range = 1800-2200

Recommended for

- Quad II amplifier

- Vox AC10, AC30

- Dr. Z Z-28

- Vox AC15HTVH head (install all Mullard tubes: EF86, 12AX7, EZ81, EL84)

- Eastern Electric M520

- Matchless C-30, SC30

- Bottlehead