6189W GE JAN NOS 1973 mica flake inside tube (9.0/9.2ma) 1-2% section balance
$ 25.99
1 low noise tube) 6189W GE JAN NOS 1973 mica flake inside tube
9.0ma Gm=2100
9.2ma Gm=2100
12AU7 subsititute
5814A=12AU7 GE is also recommended
See more: vacuum tube