(!!!!) (Best Pair #2) 12AU7 Philips Holland NOS 1971-1972 dimpled disc halo (10.2/10.6ma and 11.2/11.6ma)

1 low noise tube) 12AU7 Philips Holland NOS 1971 dimpled disc halo in white box 1 tube) 10.2/10.6ma Gm=2100/2200 (1971) 1 tube) 11.2/11.6ma Gm=2300/2300 (1972)    - similar sound to 7316 Philips SQ Holland - very good detail and upper mid presence and good bass   Tested on Amplitrex Good Ma range 8-10ma Good Gm range 1800-2200   recommended for: - VAC PA100/100- Wavac pr-t1 preamp- Audio Note M1 preamp- Octave HP500SE (Germany)- VTL TL 7.5 MKII preamp- Audio Note M8- Rogue Cronus- Concert Fidelity- Audio Valve Eklipse linestage - Ashdown Little Bastard 2010- BK Butler Tube Driver - Sonny Jr. Four-ten / Customized Harp Amp- Conrad Johnson PV 10AL 1993