Synergistic Red Fuse ...

Mac48025 3-14-2017
Are the SR fuses blowing for no reason? I have 6 SR black fuses with the same values as the stock fuses they replaced without incident. Might the issue be one that only applied to the early fuses?

Mac48025, after briefly making use of the "Find" function that is provided in the Firefox browser I use, using the terms "blew" and "fail," I believe that the most recent reports of SR fuse failures were in posts by members "whitestix" on 1-22-2017, "fynnegan" on 1-14-2017, "fleschler" on 12-21-2016, "sns" on 12-10-2016, "mtseymour" on 11-10-2016, and "dlcockrum" on 11-5-2016." Some of these reports involved SR Reds, and some involved SR Blacks. Some of the reported failures occurred instantly, and some after a period of time. Also, Wolfie had reported that a couple of the SR fuses he tried in various components in his system had blown, as did at least several members who posted earlier in the thread.

FWIW, my guess as to why some have experienced these failures and others have not relates to differences in turn-on surge currents (referred to by EEs as "inrush currents") among different component designs, and perhaps also to differences in susceptibility to failure among SR fuses having different current ratings and/or different fast blow/slow blow ratings.

Also, regarding the correction that you subsequently made to your post that I quoted from, FYI you can edit a post during the first 30 minutes after it is submitted. Click on the gear shaped icon at the upper right corner of the post, and click "edit."

Best regards,
-- Al

Thanks Al, your expertise and grace is appreciated.

Hmm, if a fuse is made to be a sacrificial component, as proffered by georgehifi, then wouldn't it make sense to make one of higher quality?
It wouldn't degrade as quickly, if ever.

As for the ones that blew instantly, aren't those rather rare compared to the vast majority of fuses sold? And didn't someone, earlier on in this thread, say that not all amps turn on the same and the inrush of current is not the same from different makes? I seem to remember someone talking of a brand with different models that behaved differently. Fuses blew and fuses didn't simply dealing with different models of the same component. And didn't someone offer that going up just a bit in value seems to do the trick for the ones that easily blow without detriment?

Some tubes fail soon after insertion for no apparent reason. Some other components do as well. Crappy fuses have been made for a long time so it's rather easy to assure the most basic performance needed during manufacture due to the lower standards involved. Pound them out. Almost uniform performance after purchase is a given and nothing to really brag about.


Some failures are to be expected. So what? People have gotten their money back or the fuse replaced and viola! It works.

All the best,
Nonoise

mac48025                     03-14-2017

Reading your post is like a breath of fresh air. Thank you.

The SR Black fuses and the Black outlets make my system sound way better. If offered a full refund in exchange for surrendering these items after lo these many months, I would respectfully decline. Ain't nobody's business but my own....