yeah I got mine on ebay as well just look up NOS RFT 12AX7. They came from czech and took a few weeks to get here, well worth the wait. They were a night and difference from the JJ's I had in there.
Have to say I was worried when I bought my MK III (green) cause it didn't have the bite I remember from an old friends amp. Bummer cause I play metal and I had always heard great things about the amp. I put it in the closet and didn't touch it for a year or so. I decided to mess with it again...
