Re: replacement Powerbook Supplies

[chris boring]

- Original Message -
From: <[EMAIL PROTECTED]>> In a message dated 10/7/01 1:20:23 AM,
[EMAIL PROTECTED] writes:
>
> <<
> If you see a used supply for your Powerbook on sale, buy it even if
> yours is working fine today. They're hard to find, and valuable.
> >>
>
> Truer words were never spoken (OK, written).
>
> I bought a few 500 "bricks" for $10 each, just because they were "orphans"
> (i.e., they had lost their PB).
>
> Much later, I bought a few PB500s for $50 each, just because *they* were
> orhpans (i.e., they had lost their "brick").
>
> I'd say $60, total, for a PB540c was a pretty good price, no?
>
> But it's true, you can never have too many spare "bricks" (even if you
never
> find a matching PB for it).



I have 3 briscks for my 3400.  One is it's standard, the other 2 are G3
bricks (smaller).  The 3400 brick stays plugged in so that my 3400 always
has wall current readily available.  One of the G3 plugs is in my targus
case, and the other is in storage in case of the other 2 crapping out.

-doktorboring

   [still in mourning for my city's skyline.]

AIM- doktor242
MSN & Yahoo- doktorboring
www.mp3.com/c6h6

"You can't break a free man.  The worst you can do is kill him."
---Robert A. Heinlein




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Re: replacement Powerbook Supplies

[PeterH5322]

In a message dated 10/7/01 1:20:23 AM, [EMAIL PROTECTED] writes:

<<
If you see a used supply for your Powerbook on sale, buy it even if
yours is working fine today. They're hard to find, and valuable.
>>

Truer words were never spoken (OK, written).

I bought a few 500 "bricks" for $10 each, just because they were "orphans" 
(i.e., they had lost their PB).

Much later, I bought a few PB500s for $50 each, just because *they* were 
orhpans (i.e., they had lost their "brick").

I'd say $60, total, for a PB540c was a pretty good price, no?

But it's true, you can never have too many spare "bricks" (even if you never 
find a matching PB for it).


-- 
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 -- Canon PowerShot Digital Cameras start at $299   |  Free iBook!   |

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replacement Powerbook Supplies

[mperras]

If you have a power transformer label that tells you it outputs
"(whatever) Volts AC", then it's just a cheap transformer with a plug
that will provide raw usually unfiltered AC to it's intended appliance,
which will THEN rectify (convert to DC) and filter the power to some-
thing useable, usually around half the rated AC voltage.

Do NOT use an AC wall-wart transformer on your Powerbook, you might
damage it beyond practical repair, as they rely on a high-quality
switching power supply to power them. The power supply that came with
your Powerbook is NOT a cheap wall transformer, but a sophisticated
self-regulated current-regulated sensing switching power supply that
won't tolerate the sort of abuse we assign to garden-variety wall
transformers. Drop it on concrete and it's probably toast.

If your PB supply has died, seek high and low for another just like
it, because it's the very best thing you can use. It's possible to
build a conventional power supply to the same specs, but I've done it,
and it's a tough power supply to build ( to the same specs, anyway ).
These things have to supply very highly filtered and regulated voltage
at high current (typically around 3 Amps) through a broad range of
current demands, and that takes a sophisticated design.

If you see a used supply for your Powerbook on sale, buy it even if
yours is working fine today. They're hard to find, and valuable.


-- 
PowerBooks is sponsored by  and...

 Small Dog Electronicshttp://www.smalldog.com   | Enter To Win A |
 -- Canon PowerShot Digital Cameras start at $299   |  Free iBook!   |

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