Check with Andy at Vintage Tube Services. He will give you good advice. Give him a call, which is better than e-mail for this purpose.
Line Magnetic 219ia 12AX7 Tube Rolling
I acquired myself a LM219ia just two weeks ago. I love the amp. For the cost that I can obtain a pair of NOS 12AX7’s for, should I grab a pair and roll them now? I would grab NOS RCA’s or Mullards. Does anyone have personal experience with rolling 12AX7’s in these amps? Will the results be worth my time, and what sort of sonic characteristics or improvements might I find? From what I have gathered, the swapping of these preamp tubes should yield the most dramatic results, followed by the 845’s. I appreciate any advice. Thank you
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