(!!!) (Recommended Single) 12AU7A RCA clear top used/like new "D" getter halo 1960's (9.0/10.8ma)

1 low noise tube) 12AU7A RCA clear top used/like new "D" getter halo 1966 (AX) 1 section) 9.0ma Gm=2000 1 section) 10.8ma Gm=2200   Tested on Amplitrex Good Ma range 8-10ma Good Gm range 1800-2200     (the best sounding US made 12AU7A, the 5814A RCA is also good from 1959-1970)(also consider subs 5814A and 6189 RCA)- 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 - Fender Blues Deville