12VDC power supply alternative.

Submitted: Friday, May 11, 2012 at 19:06
ThreadID: 95500 Views:2135 Replies:2 FollowUps:0
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Hi, my father has misplaced the power supply for his caravan expoler antenna and needs to source a new one.
He called the manfacturer and they want a ridiculous price for a replacement so now we're looking at alternatives.
The rating of the original one is:

AC/DC Adaptor
In: 240VAC 50Hz; Out: 12VDC 100mA

The local guy at Jaycar said it would be ok to use the one he can supply but it is rated at 400mA opposed to the above 100mA. It's still 12VDC however.
Is there any tech experts out there which can confirm this as a second opinion of offer suggestions?
What difference does the mA rating actually make just out of interest?

Thanks guys,
Mysterybags

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