I'm going crazy"(well not really) trying to fined a really good tube for the 3A.If any present or past owners know of any super matches please respound.
I would give Kevin Deal a call at Upscale Audio a call. I have been dealing with him for a while and find him to be a great help when picking NOS tubes. I put some NOS Tunsgrams in my M3A, and they sound great. Best-Gary
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