Article View: comp.sys.mac
Article #31370Re: crash and burn!!! Why no fuse?
From: Sun NCAA
Date: Fri, 19 Aug 1988 14:55
Date: Fri, 19 Aug 1988 14:55
23 lines
1403 bytes
1403 bytes
In article <870209@hpcilzb.HP.COM>, tedj@hpcilzb.HP.COM (Ted Johnson) writes:
>
> I came in to work Fri. to see my Unix box belly-up. The power outlet
> had shorted together and was now putting out 204v instead of 120V
[stuuf deleted]
> But it makes me wonder..., WHY DOESN'T MY SE HAVE A FUSE?????
> Seems like the $.50 that a fuse costs would be worth it!
> Maybe someone at Apple can answer this...?
All Apple Computers use a switching power supply which has a natural
feature of shutting down the internal power supply oscillator if the "OUTPUT"
should become shorted, there-by stopping power transfer across the small
transformer. This is all that is required by UL, and makes the machine much
more reliable since it doesn't contain a fuse, which could fail (come on now,
how may times have you replaced a fuse, Just because it blew?).
--
Matthew Lee Stier (919) 469-8300|
Sun Microsystems --- RTP, NC 27560| "Wisconsin Escapee"
uucp: {medusa, rti}!sunpix!matthew |
Technical Details
Message-ID:
<224@greens.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!lll-winken!lll-tis!ames!haven!umd5!uvaarpa!mcnc!rti!sunpix!matthewReferences:
<870209@hpcilzb.HP.COM>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!attcan!uunet!lll-winken!lll-tis!ames!haven!umd5!uvaarpa!mcnc!rti!sunpix!matthew From: matthew@sunpix.UUCP ( Sun NCAA) Newsgroups: comp.sys.mac Subject: Re: crash and burn!!! Why no fuse? Message-ID: <224@greens.UUCP> Date: 19 Aug 88 14:55:40 GMT References: <870209@hpcilzb.HP.COM> Organization: Sun Microsystems, Research Triangle Park, NC Lines: 22