(!!) (Best Single) 12AU7A Westinghouse gray plates “”O”” getter halo 1960”s NOS (10.6/11.2ma)

1 low noise tube) 12AU7A Westinghouse gray plates “”O”” getter halo 1960”s NOS

10.6ma Gm=2200

11.2ma Gm=2300

Good Ma = 8-10ma

Good Gm range 1800-2200

Matched on Amplitrex

best for:

– Cayin MT-35 Integrated amp
– Rogue Audio Cronus
– Rogue audio Perseus + Rogue audio stereo 90,
– Sun Audio 1000
– CJ PV10
– VTL 7.5 Series II
– Ampeg
– Aguilar DB750 driver tube
– Odyssey Kandela preamp
– David Berning ZOTL Pre One Audio Preamplifier