I was listening to my tuner last weekend and suddenly there was a weird kind of time warp distorted sound that started coming from both channels. Reminded me of the time a tube went out in my old Rogue amp. I rushed over to my amp and turned it off. When I powered it up again and played the tuner I got distorted sound from both channels. Bad distortion. I then tried different sources and got the same thing. I suspect a bad tube in the PV-11 since my amp is the solid-state Conrad Johnson MF-2200. Thing is all the tubes in the pre-amp still glow. Am I wrong in thinking it's a tube? Could it be a capacitor? What should I look for here? Thanks in advance for all replies.