Meat Plow wrote:
On Mon, 31 Dec 2007 21:27:39 -0500, mm wrote:

It seems I mailed home the powersupply cord and transformer for my IBM
ThinkPad 600E, instead of putting it in my suitcase.

So I need something to use until the package I mailed comes.

It says 15.5 to 17 volts DC, 56 watts, and I have a whole bunch of
possible adaptors to use, but if I have to make one from a transformer
and diodes, how much ripple filtering would I likely have to do to
simulate the original power supply. None at all? So many microfarads
worth before and so many after the diodes?

Your basic regulated full wave bridge supply with a 470 uf cap across the
output will work just fine. Make sure it can deliver a steady 2 amps.

What is a "basic regulated" full wave bridge supply?
The terms "regulated" and transformer/diode/cap seem to be incompatible.
If I understand what you wrote, it's a very risky recommendation for
someone skilled in the art. But someone skilled in the art would
not have asked the question.

If you don't have a REGULATED power supply within the allowable range,
give it up.
If the original posting is an accurate description of the thought process,
the OP should do his laptop a favor and wait for the mail.


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