"s" <> wrote in
news: oups.com:
>
> thanatoid wrote:
>
>> The only difference between a power adapter which you can
>> buy at a VERY GOOD electronics-radio supply store (the
>> kind normal people NEVER go into, and also possibly the
>> only kind which will have an adapter with these specs) and
>> the "Dell" one is the case, name and price.
>>
>> Most components of most name-brand computers are generally
>> made with the cheapest components bought from other
>> manufacturers. For instance, for many years - maybe still,
>> all desktop "Dell" optical drives were LG. IMHO, LG is an
>> excellent brand, but it's no TDK, Yamaha or Plextor
>> price-wise.
>>
>> When you go into one of these stores they will have a
>> $1,000 multimeter the size of a small TV and you can check
>> the voltage output quality of the adapter you will be
>> buying. Just make sure the specs are EXACTLY the same and
>> that the plug polarity is correct.
>
> Dell even does not seem to carry the exact model I got with
> my laptop(when I called that is what they told me and their
> site also did not have the same model) and is offering me
> another one claiming it will also be fine for me. BTW, how
> do I ensure plug polarity is proper? I am bit new in this
> field so hope you can excuse me. And I checked with local
> Staples and CircuitCity but they did not have any. I guess
> I need to try RadioShack. Are there any stores you would
> suggest?
>
> Thanks a lot for your help and time.
>
>
You're welcome.
You need to look in the yellow pages under "electronic
components" or "radio equipment supplies" or ask a technician in
a nearby computer or electronics store where a place like that
might be in your area. Radio Shack and places like that will not
have what you need. What you need is a Radio Shack on major
steroids - like I said, it's the kind of a place where only
technicians go.
BTW beware of RS in general - a lot of their stuff is fine, but
all of it is overpriced, and MUCH of it - especially the more
esoteric stuff - are other brand factory seconds (which RS stamp
with their own name) which the real manufacturers reject because
they're not up to spec, sometimes EXTREMELY so. Another subject,
I suppose. Still, they're great if you need something simple and
cheap and there's nothing else. In some towns there IS nothing
else.
You could check
www.mouser.com, they have a LOT of this kind of
stuff, but of course you won't be able to make sure it works
since you probably don't live in the city where they are
located.
The polarity is which of the pins is negative or positive, and
in an extreme case can fry whatever you plug into the adapter.
In some cases it makes no difference, but I have a feeling a
laptop is NOT one of those cases.
But if you have the old adapter, there should be a tiny drawing
on it explaining that, or if not, Google for the EXACT model
number and see what turns up. It MAY be in the manual as well.
MAYBE. If you DO find a good electronics shop they should be
able to make sure their adapter will have all the right specs
including the right polarity on the plug.
I'm not surprised Dell doesn't have your adapter any more. ALL
big manufacturers make completely new power adapters (and many
accessories) for every ****ing model of anything they make, all
just to make sure you'll have to buy a new one and not be able
to use an old one - even though they all do exactly the same
thing. Sometimes they even change the plugs just for that same
reason.
You MAY have to cave in and buy the Dell they claim will work -
but make sure you get some kind of warranty that says they will
replace your machine if it blows up because the adapter is NOT
the right kind.
Good luck. It's a tough one.