(!!) (BEST VALUE SINGLE) 12AU7A RCA branded CONN clear top used/good 1960”s (8.4/8.2ma)

1 low noise tube) 12AU7A RCA branded CONN clear top used/good 1960”s

8.4ma Gm=1800

8.2ma Gm=1900

Tested on Amplitrex

Good used Ma range 7-9ma

Good used Gm range 1800-2000

(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