Hi.... got a new DRRI. Love it, but I get some tube rattle or filament shaking on some notes, generally around Bb or thereabouts.
Particularly funky on the low E at the 6th fret - rattle with rising hum which then fades out. Generally this doesn't start until the tubes warm up. So I am hoping that I just need to re tube.. which I plan anyway. I can see Groove Tubes in there now as 6V6s..
Any comments will be appreciated!
Thanks