Any of these tubes good for amps?

[PRNDL]

I got a box of miscellaneous tubes and am wondering if any of them are useful for tube amps, especially guitar. If not, I'll probably list them on ebay.

6EW7 6LB8 31JS6C 24LQ6 66S6C 36KD6 3AW2A
36KD6 6BK4C 36KD6 6LU8 6KD6 6KD6 12AX4
6BX7GT 6BQ6 12AV6 6N7 6AQ7 6C4 3BW2 3CU3A 6AH4
6J6 6SQ7 6AX4 6AG7 6BL7GT 1B3 17BF11 6CB6 26L6GT
12AL5 6AC7 6H6 6SG7 3AW2A 6AU4 3A3C 6GH8A 25CG3
6H6 6HM5 4GK5 12BA6 6BK7A 6AV6 6AQ6 6CS7 11LQ8 6GF7A
6C37 6DR7 6CG8A
5GH8A 6U8A 17CT3 19T8 6BC7 6V3 6BJ6 12AZ7 17CT3 6X5GT
6ME8 6BN4A 6AG5 6ML8 6AG5 4EH7 6BC5 6X8 6X8 6LX8 11AF9
1X2A 6QS7 17CT3 6BC5 6BZ7 6BF6 1X2A 6GC8A 4HA5 12HG7 6J6

5GJ7 6BN6
23Z9 25CU6 6GH8A 6C4 6CG7 6BJ6 8BH6 10DE7
6SC7 6SF5 3BN4 6X4 6S4 1V2 6AT6 6AS5 6GH8A 6GH8A 6BK7A

12SA7 17EW8 1R5 50L6 35Z5GT 12SQ7
6DT6 6EA8 12AX4 6DE4 6DE4 6GC7 X2 6EB8 3BN6
3DK6 50C5 6DQ6A 12BA6 12BE6 6BZ6
6EW6 3V4 6DR7 12AV6
6AU6

 

[Eli Duttman]

Use TDSL and examine the data sheets for yourself.

6GH8s are a popular substitute for 7199s in Dynaco circuits. The 6U8 is another good pentode/triode. We use the 12AL5 in the B- supply of "El Cheapo". The 6AU6 is useful both as a voltage amplifier and as a current sink.