fuses - the $39 ones or the 85 cent ones

The Acme site suggests that one must be sure that their equipment must be compatible with ceramic fuses; why would a ceramic fuse not be compatible if it the right speed, size, and amp value?

Pubul57
Just like the others ceramic is automatically a "Slo Blow" fuse and some components only come with "Fast blow" type, however most if not all should be able to take a slo blow, but you might want to ask your manufacture, I did and they even said I could go up ONE amp size on top of using a slo blow over a fast, most put the fast because they are super cheap and can be bought in the thousands for about 10 bucks.. Keeps them building components for years on one batch.

Well, I'm going to get the Acme and compare them with my Isocleans. At $12 bucks a pop, with silver, sand-filled ceramic, and cryogenically treated they seem like a real "bargain".

Pubul, we really have nothing but "classic testimonials." And of course, for me all they give me assuming they are credible, is the interest in hearing it myself or at least checking with my friends as to whether they have heard it and, if so, how it sounded.

I have too often tried tweaks that seemed to make no sense but proved quite important to rely on that judgment. At some point on many testimonials, I have tried tweaks, etc. and to my personal satisfaction have rejected the testimonials. An example is most ac filters and all surge protectors.

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Here is my email exchange w/ Acme:

Are your your silver/ceramic fuses 'typical' in their physical design: i.e. a fine wire passing through a ceramic tube? I ask because one of the 'devils' in filament fuses is vibration of the filament. Some designs now have the filament completely embedded in the ceramic or other material to damp vibration, and I wondered if yours are like that?

Hello Neil,
The filament is not embedded but is in a very close tolerance tunnel.
Michael

So I still like Roger's sand-filled fuse the best. Unfortunately he only has them in values he uses for his equipment. But these silver cryoed Acmes are starting to sound like a cost effective solution -- especially if one feels (as I do) that the important properties are vibration damping and heat dissipation --- not the use of exotic metals.
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