Quick fuse question

mktracy-    Was the Bussman 5A a dual-element?     If a single wire, twisted around a small rod, it was a Slo-Blo.        There’s a difference in time and function, between those two designs (see, "Selection Considerations" and, "Fuse Characteristics Curves and Charts", page 6 and on, in the link below).     If a higher value seems too great a gamble, but- the only recourse (far as an upgraded fuse); that stock dual-element must remain.                 Peace of mind’s important! https://m.littelfuse.com/~/media/electrical/application-notes/powr-gard-technical-application-guide....

@gs5556 Thank you for the info.@rodman99999 No the Bussman 5A was just a regular Slow-Blow 5A fuse. Not sure what brand the original MDQ5A is but it is back in the amp and works fine. So guys is it safe to say that if I put a 6.3A boutique fuse (AMR fuse) in the ARC D200 that it will be protected and work fine. Or am I just out of luck with using a audiophile fuse?

I'd try an AMR 5A, Slow-Blow and see if it holds.      The 5A Bussman may have been old and compromised/weak, from however long it had been in use, prior.       If a 5A AMR won't hold, through a normal start-up; your amp won't hurt itself with a 6.3A.           If that holds and lasts a while, go for a HI-FI Tuning Supreme.     They make both 5A and 6.3A (you may already know).      I like 'em!

@rodman99999 , I will try the AMR 6.3A and see what happens. The 5A Bussman was new and never used though. I heard good things about HI-FI Tuning, but most people seem to like the Silver Star better. Any thoughts on the differences between the 2 HI-FI Tuning models?

Got it (I thought the Bussman came out of another component).     If I’m not mistaken; the Silver Star’s been discontinued, though some dealers still have a limited inventory, on sale.    I had used the Classic Gold, for years and liked them.      Skipped the Silver, when the Supreme came out.