1 slightly microphonic low noise tube) 12AU7 Sylvania “”black plates”” and “”D”” getter halo NOS 1951 in white box

copper grid posts

“”D”” getter halo spot-welded to plate post

9.2ma Gm=2100

9.8ma Gm=2200

– low microphonics – not severe

Recommended 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