JG-6189=12AU7WA GE triple mica NOS 1963 (8.6/10.4ma) Title: JG-6189 GE triple mica NOS 1960-1963

1 low noise tube) JG-6189=12AU7WA GE triple mica “”O”” getter halo NOS 1963 mil-grade in white box – pins cleaned and polished

8.6ma Gm=1800

10.4ma Gm=2100

JG=mil-grade

12AU7 subsititute

5814A=12AU7 GE is also recommended