Needing Power Source for PowerBook Duo 270c

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Needing Power Source for PowerBook Duo 270c

I recently was given an old powerbook 270c. However it was missing a rather important piece... The power supply. The battery was dead and so I could not get it to start up. Does anyone know where I could get one for cheap, or build one?

DrBunsen's picture
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Power Supply

You could probably find one cheaper on ebay or here in the Wanted to Buy forum than you could make one yourself. They're common to quite a few models, like the 1400.

But if you do want to build, you need a 6.5mm (large) stereo headphone jack and a little rubber cable clamp or grommet to fit around the base of it - this ensures that the rings on the connector line up with the right pins inside the 'book. I forget what the polarity is for the ring tip and sleevc, maybe someone else here knows.

The Apple power supply also has a large metal sleeve around the center pin that goes into the ring-shaped slot you'll see on the back of the 'book. It doesn't seem to do anything.

Current and voltage requirements are on the bottom of the lappie. Once you price a power supply to suit from Radio Crap and the plug and your time and the chance of mucking it up, compare the price of a used power supply from ebay.

eeun's picture
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Cheat

I cheat with the remains of my 520, and spliced wires into it from the 12V line on a PC power supply. Not very portable - well, not at all - and not too compact anymore either, but it works. The 520's AC adapter has 4 pins at the 'book end: two for power, and I assume the other two go to the charging circuits.

Anyone out there know, or can quickly measure, the duo adapter's DC output?

jt
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The older 68k adapter says:

The older 68k adapter says:
DC24 v
1.04 A

2300c's is about 1.5 A, IIRC

No time to look now, lightning storm just went into flash/boom mode . . .

ttfn,
jt

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Request more info:

Can you really make a power sdapter with a stereo headphone plug? I'm in need of a power supply for a Duo 270c as well. Does anyone know the polarity?

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Joined: Mar 11 2004 - 19:01
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Power supply

Would a DUO 230 PS work? I have a nonfunctional 230 available... (PS powers up the PB, but no chime...) I know this is NOT the for sale page, I want to give this away to a good home...

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Same

They're the same PS

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Really?

If by "give away to a good home," you mean free, then yes, I would love to have it. Private message me with info please!

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Gekko!!!!How much for the 270c???

I reallywant a duo...You have a PM,and in my thinkpad post,i told you too.REPLY ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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