1 low noise tube) 12AU7A Amperex by Mullard NOS ribbed plates (Gf2-B4G3=1974) 

1 section) 10.6ma Gm=2200

1 section) 11.6ma Gm=2300

 

Good Ma range 8-10ma 

Good Gm range 1800-2200

 

- smooth overall sound

- rich textured midrange

- good bass

- smooth highs

 

Recommended for

- Concert Fidelity CF-080LS Hybrid Line Stage Preamplifier
- Ampeg SVP-PRO Bass Preamp
- Velleman K4000 kit
- Audio Note CD2
- ROTH AUDIO MC4 MUSIC COCOON 2009
- Eastern Electric Minimax
- Hovland