So i have a small 15 watt tube combo amp, and anyways, i left it on later last night, and it started making a midrange buzzing noise that kept getting louder, i turned the amp off and it was VERY hot and the amp smelled like burning. This morning, i plugged my guitar in and played, sounds fine. what do you guys think happened? do i need to replace tubes?
Could have been tubes, or possibly the transformer. Never hurts to put new tubes in.