whimsy

[The Dark force of dance]

Y-ellow Y-all.
        Nothing blows a fuse like a good screwdriver. Or perhaps an engineer
after one too many screwdrivers.
At 04:17 PM 06/24/98 +1000, Paul Perry wrote:
>At 09:11 AM 24/06/98 +1000, rowenal wrote:
>
>>Why would the builder have put fuses in a +5 or +/- 14 volt supply?
>>
>....because this is for amateur constructors, and fuses are cheaper than 
>transformers and other PSU components!
>Now that it is illegal (at least in australia) to have a replacable fuse in
>a wall wart,
>I think everyone shd fuse their low voltage supply lines.. just for economy.
>Also, if you fuse each of the supply lines, you know which one has the
>problem ;-)

Just quickly. I seem to recall something about it being pointless putting a
fuse on a low current supply. Either side of the transformer. Something
about when there is a problem the transformers tend to go into melt down
well before the fuse will blow at rated current. I've never put this to the
test exactly, I gave up smoking years ago, but it makes sense. I guess the
nice thing about using something like a 723 as a regulator is that it can
current limit well beyond the sensitivity of a fuse.

Be absolutely Icebox.
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