Ringing Sound In Tube Gear

Does it increase in volume when you turn it up?

In my limited experience with tubes, it is always a good start to replace the tubes and see if the problem goes away. A lot of ringing/buzzing/soft intermittent pops/crackles are tube related as the tubes get older (or in the case of minor pops...sometimes when you first put them in).

No, the ringing does not increase with the volume. These EL34 tubes aren't very old (I replaced them just this past spring). Thanks for your input.

hmmm...take them out, tap them gently on top and replace them back in the socket? i do get occassional ringing (faint), and Brent Jessee has recommended this easy first step. It has worked for me in the past.