EL34 Mullard UK XF1 NOS 1959 (XF1-B9C=1959) fat brown base and double "O-O" getter halos

83ma

Gm=11,350

SINGLE TUBE - NOT A PAIR

Tested on Amplitrex

Good NOS range 70-90ma

Good Gm = 10,000 - 12,000

Recommended for

- Diezel Stereo Guitar Amplifier
- CARR amplifiers
- Marantz 2
- Manley Snapper