(!!) 26 RCA Radiotron balloon used/good 1920's (6.2mA Gm=900)
(!!) 286A Western Electric "top printing" NOS 1942-1945 (6.9ma) (Buy two 286A receive 5% discount)
(!!) 286A Western Electric low hours/tests like new "top printing" 1942-1945 (6.8ma)
(!!) 396A=2C51 Western Electric used 1967 (9.6/7.0ma) (mis-matched Gm)
(!!) 5751 GE 5 Star used/good 1970 (1.6/1.7ma)
(!!) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA (1.8/2.0ma)
(!!) 5814A RCA black plates used/good 1964 (7.2/8.4ma)
(!!) 5842 Raytheon branded RCA NOS 1976 (20ma and Gm=20,000)
(!!) 5842 Raytheon branded RCA NOS windmill getter galo 1967 (28ma Gm=25,000)
(!!) 5963=12AU7 RCA NOS 1963 (9.2/9.6ma)
(!!) 6350 RCA NOS triple mica "U" getter NOS 1960 era (12.8/13.2ma)
(!!) 6350 Sylvania black plates rebranded United "U" getter used/good 1950's (8.7/9.3ma)
(!!) 6AN8A RCA NOS 1970 era (16.6/13.4ma)
(!!) 6BH6 GE black plate NOS "U" getter halo 1953 (6.5ma)
(!!) 6BH6 GE black plate NOS "U" getter halo 1956 (8.0ma)
(!!) 6BL7GTA GE NOS "D" getter 1958 (43ma/53ma)
(!!) (SINGLE) 6BM8=ECL82 Valvo Holland used/good 1960 (1.9ma/34ma)
(!!) (Recommeded Pair) 6BX7GT GE branded NOS "D" getter 1958 - 1 tube branded RCA (72ma/95ma and 92/87ma) (highest mA and Gm)
(!!) 6BX7GT Sylvania "D" getter halo NOS 1950's (44/46ma) (close triode balance)
(!!) 6BX7GT Sylvania black plates NOS 1960's (56ma/76ma)
