Fuses disappoint me.
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Fuses disappoint me. They're good idea and all, but...
I've been repairing electronics for over two decades, and it's just never a fuse. I'm always opening up broken shit and there's a big fuse right there and it's fine. It's always fine!
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The last time I can recall having to replace any fuses was in an S100 machine, and the fuses hadn't even blown: The thing had been moved roughly and some thin glass from the 70s had been shattered by a spare circuit board stored in the case
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just ONCE I want be like "time to fix this Expensive Thing" and I open it up, spot the fuse has blown, swap it, and it works. Done, fixed in a couple minutes.
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Sunflower Björnskalle 🌻replied to Foone🏳️⚧️ on last edited by
@foone I have one of these sitting on my desk right now. Something smells burnt but the fuse is perfectly fine.
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BUT NO, it's always bad caps or internally damaged ICs or zener diodes or damaged traces from leaking batteries.
The fuses are fine!
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Foone🏳️⚧️replied to Sunflower Björnskalle 🌻 on last edited by
@apodoxus yeah! I have so often opened up devices that are clearly electrically fried but THE FUSE IS FINE
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@foone there was a peculiar failure mode that'd sometimes hit the power supplies on Harris Z series FM transmitters where the fuse holders in the rectifier boards would gradually lose their grip and the fuses would heat up and blow, along with the holder clips being all roached and in need of replacement. If they blew WITHOUT overheating this though it was just due to the SCRs shorting. The fuses were there to keep a shorted SCR from being delivered the full amperage of the supply and going BANG
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@foone
Don't worry, I'm sure that will happen if you forget to check the fuse -
@foone I've seen what happens after the fuses blow on a 15 MVA generation station. The fuses, roughly the size of a person's arm, were mounted in a holder with metal wheels and tracks going across the floor. The force of a fuse blowing scooted the holder along the tracks and a good 6' clear of the contacts. It took two people pushing hard to reset the fuse holder
This was the same place that someone tried to steal the main connection cable. With an axe. While it was energized. Ah.
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@scruss yikes and OW
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@phi1997 I know it will!
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Caroline :transgender_flag:replied to Foone🏳️⚧️ on last edited by
@foone
Exception that proves the rule: the 10A fuse in a multimeter. It has about 1 hp. -
yomimono, still on earthreplied to Foone🏳️⚧️ on last edited by
@foone I’ve only ever seen heat-triggered fuses blow, namely in a cheap rice cooker and an expensive iron
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@yomimono oh yeah those sometimes blow, I've had that a few times. But those are usually integrated fuses that are designed to brick the device to keep it from burning down your house, not the kind that are replaceable and supposed to protect other parts
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Foone🏳️⚧️replied to Caroline :transgender_flag: on last edited by
@whole1day amazingly I don't think I've ever blown a multimeter, even in my electronics class where the teacher gave a whole talk on how we're just naturally gonna blow a bunch of the fuckers. Other students in the class blew a few, but not me
