(!!!!!) (BEST PAIR) 12AU7=ECC82 Telefunken Germany smooth plates NOS 1961-1965 1-5% matched (10.5/12.0ma and 12.2/10.2ma)

1 Low Noise Pair) 12AU7=ECC82 Telefunken Germany smooth plates <> bottom NOS  original boxes 1 tube) 10.5/12.0ma Gm=2400/2600 (1961) 1 tube) 12.2/10.2ma Gm=2800/2400 (1965) excellent printing - almost perfect 1961 and 1963 date codes 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