Does anyone know the possibility or how of actually getting some specific Marshall numbered JJ preamp tubes? After collecting and rolling a fair sized pile of current production tubes in several of my amps, I keep coming back to the best overall sound/tone/gain/noise balance being both a Marshall VLVE-00066 ECC83S JJ Low Microphony Red Logo and a VLVE-00067 ECC83S JJ Low Microphony Red Logo. I realize there are likely some NOS items that may be as good and/or better, but these came in V1 of a couple amps and just "have it all" by comparison to the other CP units on hand.
Thanks 2 All,
Gene