Frengo schreef:
> On Sat, 13 Feb 1999 22:27:45 +0100, Martin Schumann wrote:
>
> >Hi everybody!
> >
> >Erik wrote:
> >
> >> If the fuse gets hot or the fuse is blown replace the 4 (big) rectifier diodes
> >> (it's a common defect for the 8280)
> >
> >Its possible to use a big 10A bridge rectifier instead of the four diodes and mount
>it at the left side of
> >case to cool it down.
>
> 10A ?
> Is not possible to use a 5A one ? It's cheaper :-)
>
> by Frengo
5A is just on the edge, i would reccoment to use one bigger (and the are cheap)
it's the peek current which is very high , it has to charge a capacitor.
when your 8280 uses , lets say , 5 A the peek currend trough the rectifier can easely
be more then 10 A.
most big rectifiers can hold peek currents from more then 50A , but only for a very ,
very short time.
when you have a 8280 with a lot of extra's build in you can use scotkie diodes , the
are expecive
but you will gain 1 volt more an the will be less hot
but this is only for special cases (have to do it once)
erik
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