hey guys, i have the genz benz el diablo 100 tube watt amp. I've had it for about three years, played live with it anywhere from 10-15 times. When I turn it on now though, all I hear is a very soft highpitched tone coming from the head. I'm not sure if it's my tubes or not because i've heard if it's the tubes it will simply get quieter and quieter and it never did that.

this is the first tube amp i've had so i'm basically clueless.
Sounds like it could be a microphonic preamp tube.
Quote by Dave_Mc
I've had tube amps for a while now, but never actually had any go down on me
Quote by jj1565
maybe you're not saying the right things? an amp likes to know you care.