@rodman99999, the answer to your "why would a correctly valued fuse (in voltage, amperage, and time), as required by amps’ owner’s manual, be a danger to it’s DC circuitry?" question---a reasonable one, is exactly what Roger Modjeski (my "hero", according to Geoff ;-) provides in his writings on the subject of the Hi-Fi Tuning Fuse (brand name, not generic category). The Audiogon thread in which Modjeski discussed the fuse has been removed, but all one has to do to read what he has to say about it is go to the AudioCircle Music Reference Forum. Reading the related thread will provide the answer to your question; you will then never again need to ask it! If you aren’t willing to do that, I can only conclude the question was a rhetorical one.
