(!!!!!) (BEST OVERALL PAIR) 12AU7=ECC82 Telefunken Germany smooth plates NOS 1963 1-5% matched (9.4/9.4ma and 9.5/9.0ma)

1 Low Noise Pair) 12AU7=ECC82 Telefunken Germany smooth plates <> bottom NOS  original boxes 1963 1 tube) 9.4/9.4ma Gm=2400/2400  1 tube) 9.5/9.0ma Gm=2300/2200  fairly good printing same date codes (B7013025=1963) 1-5% matched   Good Ma = 8-10ma Good Gm = 1800-2200 Recommended for Wavac prt1 preamp (pr-t1) Audio Note M1 preamp Octave (Germany) VTL TL 7.5 MKII preamp VTL 6.5, Audio Note M8 Mastersound PH-1 Airtight TC3