1 low noise tube) GL-5814A=12AU7 GE "5 Star" NOS 1954 triple mica "U" getter faded printing

1 section) 10.2ma Gm=2200

1 section) 10.8ma Gm=2200

Good Ma range 8-10ma

Good Gm range 1800-2200

Recommended for

- Woo Audio WA4 headphone amp

- Bottlehead Crack

- Bottlehead Foreplay

- CJ PV12

- Jadis amp

- Unison Research Unico-P 2005

- Einstein preamp

- Head-Direct EF1 Hybrid Headphone Amp 2008