Thanks, guys, I had a few extra fuses to try and watched the tubes as I turned it on, and sure enough a big red flash(almost like a fire) went off in one of my power tubes. I pulled out that one, and its mate. Gives me a good excuse to try some better sounding tubes. I just wish it was biased for 6l6s. Does anyone want to rcomend the best el34 for cleans, ala much more headroom? and less harsh mids? thanks for your replies