Hey all - Just got a '79 DR that's been properly BF'ed, and the tweaker went the extra step to drop a 12AY7 into V2's slot, which really added some extra cleanliness to the Vibrato channel. Problem is the tube is pretty dang sensitive to that 12" right behind it that's rattling the living bejeezus out of it. It was so bad that the previous owner thought it was voice coil rub. I don't want to go to an ext. cab in this case, and all of my other AX7ish bottles have way too much gain, and give the typical somewhat loose and farty feel of a DR (forgive me - I'm used to the bigger BF/SF amps). I say current production 12AY7's, but obviously UOS could be considered as well. I'm not really happy with any of the preamp tubes in the amp and will replace them eventually, but I really want the magic back of that 12AY7.