(!!!!!) (2nd Best Pair 1960's) 12AU7 Mullard UK NOS 1965-1966 same build (10.2/12.4ma and 10.6/12.0ma) (Rogue, Hovland, Audio Note)

1 Matched Pair) 12AU7 Mullard UK NOS 1965-1966 same build (Gf2 series) 1 tube) 10.2/12.4ma and Gm=2100/2300 (IEC Mullard 1965) 1 tube) 10.6/12.0ma and Gm=2100/2200 (10M Mullard 1966)   smooth midrange, good bass, musical, low noise Matched on Amplitrex Good Gm range 1800-2200 Good Ma range 8-10ma Low Noise and not microphonic   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