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AC Adapter tolerance

Bill Ricker wrote:
> On Sat, Feb 7, 2009 at 11:23 AM, David Kramer <david-8uUts6sDVDvs2Lz0fTdYFQ at> wrote:
>> Chris Robichaud wrote:
>>> I have a Motorola WR850G wireless router that I cannot find the AC adapter
>>> for. The back lists the input power as 12 V DC, 0.5 A. I only have a basic
>> The volts must be right, but 12VDC is very common,
> and tip polarity too,

Thanks for pointing that out.  Yes.
I can see from the user's guide at
that you need a barrel connector with a positive center ring and a
negative outside ring.  You can tell by the symbol above the jack, which
has a line going from the center dot to the + and a line from the outer
ring to the -.

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