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Thread: Hi fi fuse ? Tweek !

  1. #101
    Join Date: Jun 2017

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    Ok, a result from the Scottish Jury posted. Neel pointes awarded ( apologies to Eurovision fans yeah right)
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  2. #102
    Join Date: Jan 2009

    Location: Essex

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    I'm openingabottleofwine.

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    Quote Originally Posted by alphaGT View Post
    Yes I know I said Iím going to, and I still plan to. But Iím still recovering from major surgery, and Iím still not able to get back behind the rack and get to my fuses. But I do feel it a well worth the effort idea! So give me a month, and Iíll give it a try.

    The idea of putting a spec of solder, Iím thinking more of circuit board mounted glass fuses like found in preamps, and CD players. I do realize the big fuses on our amps, with the screw in holders, wouldnít work in that regard. Just brain storming, as Iím laid up Iíve got plenty of time to think.

    Russell
    Ah yes - sorry I had forgotten about your recent surgery. There's no rush. For the record, I did once try polishing the end caps of a mains fuse after reading about it in an audio magazine. At the same time I also polished the pins of the plug. Can't say it made the slightest difference. Neither did trying out a 'Hi Fi Tuning UK Gold' 13A fuse, and since in those days I had access to liquid nitrogen, 'cryocooling' or annealing the fuse made no difference either.

    As I said in a previous post, with most mechanical contacts, the effective contact area is about 15% of the actual physical contact area. I doubt if polishing a fuse will do much to reduce the surface asperities and increase the contact area, but using some form of conducting fluid to fill in the interstices might help. Would it make an audible difference? I doubt it: all you would be doing is to reduce an already low contact resistance of ~ 2 milliohm to one of about 0.3 milliohm.
    Barry

  3. #103
    Join Date: Jan 2019

    Location: Kent UK

    Posts: 260
    I'm Martin.

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    Barry

    I don't think it's just about resistance, the total contact users say the product reduces microarching. They believe that microarching contributes to noise, possibly even radio frequency.

    Sent from my SM-G935F using Tapatalk

  4. #104
    Join Date: Feb 2013

    Location: scotland

    Posts: 333
    I'm alan.


  5. #105
    Join Date: Jan 2019

    Location: Kent UK

    Posts: 260
    I'm Martin.

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    You may laugh Alan, but when I listen to my system it makes me smile and its definitely improved by the contact enhancer.


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  6. #106
    Join Date: Feb 2013

    Location: scotland

    Posts: 333
    I'm alan.

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    Okay Martin, if you perceive an improvement that's cool.

    Enjoy the music.......

  7. #107
    Join Date: Apr 2015

    Location: Central Virginia

    Posts: 1,750
    I'm Russell.

    Default Hi fi fuse ? Tweek !

    Quote Originally Posted by Barry View Post
    Ah yes - sorry I had forgotten about your recent surgery. There's no rush. For the record, I did once try polishing the end caps of a mains fuse after reading about it in an audio magazine. At the same time I also polished the pins of the plug. Can't say it made the slightest difference. Neither did trying out a 'Hi Fi Tuning UK Gold' 13A fuse, and since in those days I had access to liquid nitrogen, 'cryocooling' or annealing the fuse made no difference either.

    As I said in a previous post, with most mechanical contacts, the effective contact area is about 15% of the actual physical contact area. I doubt if polishing a fuse will do much to reduce the surface asperities and increase the contact area, but using some form of conducting fluid to fill in the interstices might help. Would it make an audible difference? I doubt it: all you would be doing is to reduce an already low contact resistance of ~ 2 milliohm to one of about 0.3 milliohm.
    Once youíve removed the chrome and found bare copper, I donít suppose soldering would make it sound any better. But, it would preserve that sound for a long time. And solve that issue with contact area, maximizing contact, no microarching. Was what I was thinking anyway.

    What you were saying about contact enhancers, I was thinking on the rear screw in fuse holders where we canít solder, I wonder about the silver paste? (Same thing?) They sell it at Audio Adviser, supposedly to rub on the ends of your RCA connectors, again, to maximize contact area. So, what if a dab was added to each end of the fuse? Not free, but still a cheap tweak. Just spit balling, taking it to the next level. If someone has some silver paste laying around, it may be worth a try?

    Russell

  8. #108
    Join Date: Aug 2008

    Location: Suffolk, UK

    Posts: 1,474
    I'm Paul.

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    Quote Originally Posted by Discopants View Post
    ...it makes me smile and its definitely improved by the contact enhancer.
    I’ll have to try a bit of that next time me and the missus go away for the weekend.
    ~Paul~

  9. #109
    Join Date: Jan 2013

    Location: North East

    Posts: 5,628
    I'm Alan.

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    Quote Originally Posted by Primalsea View Post
    I’ll have to try a bit of that next time me and the missus go away for the weekend.
    Just make sure you switch your hifi off and unplug it from the wall before you go....
    'ANSOM IN THE SUMMER..'ORIBBLE IN THE WINTER

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  10. #110
    Join Date: Jan 2009

    Location: Essex

    Posts: 20,695
    I'm openingabottleofwine.

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    What's all this "microarching" (sic)? I assume you mean 'microarcing', but how can you get a voltage gradient of 3MV/m to cause arcing between one part of the fuse end-cap and holder, when other parts of the assembly are in electrical contact, and thereby short out any voltage gradient?

    If you feel the use of contact enhancer improves your system, then that is all that really matters: it's your system, your ears and your money.
    Barry

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