Brian formulated the question :
Hi,
I'm looking to replace a damaged 12V 1A DC power adapter for a piece of
computer equipment. I have one similar with correct plugs etc but its 12V
1.5A DC (came from another piece of equipment). Is this safe to use as a
replacement - i.e the current output of new one is higher than old one, does
this matter?
thanks.

Make sure the polarity of the two plugs are the same plus check both
are regulated and there should not be a problem. Regulated means the
output is regulated at a fairly accurate 12v within a wide load range.
It might say 'regulated' on the case - if not you can check it with a
volt meter, no load output should be quite close to 12v.

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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk