(!!!!) (Best CBS Pair) 12BH7A CBS rebranded Raytheon Black Oval Plates "O" getter NOS 1960 era (8.6/8.8ma and 8.6/8.4ma) (McIntoch, Manley, VTL)

1 low noise pair) 12BH7A CBS rebranded Raytheon Black Oval Plates "O" getter NOS 1960 era 1 tube) 8.6/8.8ma Gm=2600/2700 1 tube) 8.6/8.4ma Gm=2500/2500 Recommended for - McIntosh - VTL - Manley - Kora Hermes DAC in place of 12AU7 - Octave M90 mono amps (http://www.octave.de/) - BLACKSTAR HT-5 (replacing Sovtek) - Luxman MA-88 amp - Requisite Audio preamp - Teletronix LA-2A Compressor/Limiter - Art Audio Diavolo amp - Ray Samuels - Kendrick Solo 7 - Valvet L1 - Audio Note