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Are there any objective criteria to choose a 6550, KT88 or KT90 in a Jolida 502a?
I'm getting one sans tubes. If one goes through the group and googles
the terms "objective tubes" there are 302 responses, many calling other members of the group ****s and assholes. Is there published literature about any "science" in choosing tube types or brands, which I realize begins to get into real or imagined subtleties and subjectivity? Should the electrical specifications of each tube type by different companies be the same? Do different runs of a particular manufacturer's tube have different specs? Can you point me to some literature to read about tubes (Harvey Rosenberg, where are you when we need you!?). Thanks from a confused neewbie tubie. |