(!!!) (Recommended Black Plates) 12AU7A Westinghouse black plates 1960 era rebranded United 1981 “”D”” getter halo (8.4/9.8ma) (similar to RCA black plates)

1 low noise tube) 12AU7A Westinghouse black plates 1960 era rebranded United 1981 “”D”” getter halo in white box

8.4ma Gm=1800

9.8ma Gm=2000

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