This amp went flakey about 3 years ago and I just turned it off and let it collect dust. Well, got out the trusty chop stick today and went poking around for bad tubes. 3rd one I bumped cracked and snapped like a wounded animal. Replaced the 12AX7 and rechecked the bias (still spot on). These are the original tubes from when I bought the amp around 1997. Plays like a dream again !





