Synergistic Red Fuse ...

Al,

Thanks for your knowledge and response!

The answer to find a better fuse might be in some dynamic testing method which you may have some knowledge of rather than just the standard heat rise and current capacity that I have read about.

Tom

The answer to find a better fuse might be in some dynamic testing method 

Only "maybe" if it looks like the same one on the right after many switch on cycles and carbon build up, then just buy a new one for $2.
https://i.stack.imgur.com/0uqWX.jpg

Cheers George
 

Tom, you are obviously from the old Michael Green school of "let the vibrations free to roam." I am from the school of "the only vibration is a dead vibration." You seem to be completely ignoring seismic vibrations, I.e., structureborne vibration. That’s exactly what the Michael Green school preaches. The Michael Green school has an almost fanatical aversion to damping, just like you. You come from a long line of naysayers. The Michael Green school preaches that the audio signal is vibration - just like you do - and he has same almost cultish argument that you do - that because the audio signal is a wave it must be vibration, so that damping kills the audio signal, kills the sound. It’s like you two guys were joined at the waist.

Al,

Thanks for your knowledge and response!

The answer to find a better fuse might be in some dynamic testing method which you may have some knowledge of rather than just the standard heat rise and current capacity that I have read about.

Tom

Thank you, Tom. I have no particular knowledge of dynamic testing methods which may be applicable to fuses. And the very comprehensive datasheet (linked here) for the Littelfuse series 313 fuses, one of which I used as an example in my previous post, makes no mention of any such tests.

By the way, FWIW that document does indicate that those fuses are compliant with various MIL-STDs (military standards) for vibration, as well as for thermal shock, humidity, and salt spray. Although of course those standards are intended to assure reliability under adverse conditions, not to assure good sonics in an audio system.

But regarding dynamic behavior, as indicated in the example in my previous post the resistance of a fuse will of course fluctuate somewhat in response to fluctuations in the current it is conducting. And it wouldn’t surprise me if those fluctuations had audible consequences in the case of a speaker fuse, or a fuse used in the output stage of a power amplifier or integrated amplifier. Depending in part on how much the designer is able to "derate" the fuse in the particular application (meaning how much margin is provided between the current rating of the fuse and the actual amount of current it conducts in the particular application). Conceivably also in the case of a mains fuse in a class AB or class D power amplifier or integrated amplifier (most of which do not have voltage regulated DC supplies for their output stages). But not in the case of virtually all other components, since in virtually all other applications (including preamps, DACs, source components, and mains fuses in class A amplifiers) the current conducted by a fuse is essentially constant all the time.

One further point, btw, to add perspective to the 0.08 volt drop in the resistance of the fuse I used as an example in my previous post. It’s worth noting that in the USA AC line voltages are considered to be in spec if they are anywhere within a 12 volt range, between 114 and 126 volts at the circuit breaker panel.

Regards,
-- Al

Geoff

As your memory has gone it must now suffer from partition and isolation from previous responses..That's the only point of isolation I agree with you on.  Please remember that.  

I will say again I never met or conversed with Green in any way or in any fashion period..I am not a joiner or a schooler..

I look for workarounds and solutions to materials and construction methods used in my line of work with musical instruments and audio. I employ materials and methods which provide additional reactance as well as enhanced direction for vibration to travel...and much less roaming.These methods increase acoustic output and dynamics while at the same time reduce hand and arm fatigue needed to play the instrument. Depending on the instrument also the lungs.

With a friend and associate we have identified wave types that cause interference and therefore inefficiencies  in some materials and objects. We are at work on ways to reduce and eliminate those type. Isolation methods your school suggests do not and cannot separate out the needed wave portion from the one that causes interference. You need to start looking again as you stopped decades ago.  Tom