(!!!) (Single) 12AU7A RCA clear top NOS 1968 (8/11ma)

1 low noise tube) 12AU7A RCA clear top D getter NOS 1968 (CG)

1 section) 8ma Gm=1900

1 section) 11ma Gm=2200

Tested on Amplitrex AT1000

Good Ma range 8-10ma

Good Gm range 1800-2200