On Sun, 28 Jan 2007 16:22:46 +1100, "James Brown"
<jb@jbhome.com> wrote:

>CBFalconer <cbfalconer@yahoo.com> wrote:
>> Skeleton Man wrote:
>>>
>>>> If I have an external phone modem that uses a 1amp 9vDC tranformer,
>>>> could I power this from the 12v line of my PC PSU? (assuming that
>>>> the modem will runon 12v)
>>>
>>> Might I ask what the purpose of this is ? (vs a PCI modem instead)
>>
>> External modems are much more useful. The presence of activity
>> lights alone gives you clues as to what is going on.
>>
>> I still like my earlier suggestion of 4 rectifier diodes.
>> Including a 1 amp fuse in the line would be valuable. Everything
>> goes in series, and the result can be in line enclosed in some
>> shrinkable tubing. The suggestion got somewhat lost in my rambling.
>
>Can't see that being very viable, 3W in heatshrink isnt a great idea.
>


It could be an issue but we haven't established that the
modem actually uses 1A. It almost certainly does not, but
what it actually uses ... ?