6AC7
Westinghouse
6AI5 6AU6A
RCA
6B8G
Westinghouse
6BA6
Matsushita
(EF93)
6BL8
Matsushita
(ECF80)
6BQ5
Ultron
(EL84)
6BZ6
Raytheon/RCA
6CL6
RCA
Nuvistor
6CW4
RCA
6CZ5
6DJ8
(ECC88)
6DK6 6DK6
GE
6DQ5
RCA
6E5
6GH8A
Matsushita
6H6
GE
6J5 6J6 6J6A
RCA
6JB6A
GE
6JS6C
GE/Toshiba
6K8G 6K8GT
Adzam
6Q7G
6SA7
RCA
6SG7
RCA
6SJ7 6SK7 6SK7GT
Tronal
6SL7GT
RCA
6SN7GT
Philips
6SN7GTB
6V4 6V6G/GT
Philips
6X4
Brimar
6080
RCA/Philips/Chatham
6100
6816 (a)
RCA
6816 (b)
RCA