[XCSSA] Blowing Fuses and Unsure Why

[X-otic Computer Systems of San Antonio]

Hi Tweeks!

I think I get what you're saying, but that's for if the fuse on the  
left of my xformer blows right? Can I use this setup if one of my  
fuses blows to the right of the xformer? The only fuse that's blowing  
is on the 9V rail - the 5V works just fine before and after the fuse  
blows on the other side.

Now, if I understand you correctly, I can hook this up so that the  
bulb lights up iff there is a short? I'm a little fuzzy on that so I  
don't suppose you have a picture? I actually have extra light bulbs,  
so this might work out well!


On Jan 9, 2009, at 11:19 AM, X-otic Computer Systems of San Antonio  
wrote:

> On Wednesday 07 January 2009, X-otic Computer Systems of San Antonio  
> wrote:
> [...]
>> Unfortunately, I ran out of pico fuses. Whoops :) Guess I should use
>> those in a final design since they are sort of a pain in the ass to
>> replace, doh!
>
> Hey Tim..
>
> A Little electronic bench t-shooting tip from my pro-audio tech days:
> When you have a prototype circuit (or just something you have on the  
> bench)
> that keeps blowing fuses.. Instead of continually replacing them or  
> doing
> pico fuses.. (or foolishly hard wire bypassing the fuse <ug>)...  
> Instead,
> just wire a 150-300 watt light bulb sock in series with your AC  
> cable and
> screw the bulb socket down to the bench (maybe throw a 15A light  
> switch in
> line with that too):
> 	http://images.hardwareandtools.com/P/u251470.jpg
> 	http://www.cacheboxstore.com/images/Large/Light
> Bulb/lightbulbfixturelarge.gif
> 	http://images.marketworks.com/hi/58/57750/EA293V-BOX-10pk-2.jpg
>
> That way you can draw up to an amp or so just fine.. but over that..  
> you just
> light the light bulb instead of blowing a fuse.  What this also does  
> is it
> gives you time to track down the short (while the bulb is lit).   
> Whatever
> component (or wire) is shorted, it will end up getting rather toasty
> (usually) and emit a "distinctive smell" which you can then either  
> track down
> by smell or by touch (ouch!). :)
>
> Hope that helps..
>
> Tweeks
>
>
>
>
>> Oh well. I'll order some more of those once I know
>> what's going wrong.
>>
>> Thanks, as always, for the help!
>>
>> Tim
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>
>
>
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