rapedbyape
New member
...How can you tell when the tubes in an amp have worn out? Do they just stop working, or begin sounding bad, or what? APologies for my lack of knowledge.
Outlaws said:I had a Blues Jr. and it sounded like a freight train when I turned it on. Got new power tubes and it was solved. Scared the hell out of me though.
Buck62 said:The best way to tell if your tubes are starting to go is to turn on the head with nothing connected to it... no guitar, no speakers, nothing. If you hear noises, one or more of your tubes are on the way out. We just had it happen to a guitar player who recorded with us over the weekend with his Marshall JCM2000 head. The thing was crackling like a hamburger on a grill before anything was even connected to it. Definitely a bad tube. The crackling was audible in the recording, so his JCM head was unusable for recording. Fortunately, I had a backup amp, so the session was saved.
Whoopysnorp said:Doesn't this damage tube amps though?
Buck62 said:How would that be?
Do you think a technician hooks up a head he's working on to a matching cabinet when someone brings it in for repair?
I doubt it.