6267=EF86 Siemens East Germany by RFT NOS 1971

2.6ma

Gm=2000

Tested on Amplitrex

Good Ma range 2.5-3.5ma

Good Gm range 1800-2200

Recommended for

- Vox AC10, AC30
- Dr. Z Z-28
- Vox AC15HTVH head (install all Mullard tubes)
- Eastern Electric M520
- Matchless C-30, SC30
- Bottlehead