At 06:02 PM 4/3/2006 -0500, you wrote:
>So there are four variables for the output of a transformer:
>
>1) type of current: AC vs DC, must match exactly
>2) polarity: center + or center - ( DC only ), must match exactly
>3) current: minimum for the device, but higher is OK
>4) voltage: minimum for the device, but higher is OK but no more than
>10% more
>
>Does that sum it up? Or is there more to consider?
Looks good to me. You probably won't find much voltage variation, really -
I was trying to say that a '12V' input requirement can actually mean '12+'
= 13, 14, 15, and sometimes 16-18. You will see this especially if you put
a meter on the leads. A 13V or 14V is OK with a device advertising '12',
because '12V' is standard automotive electrical system; as such, the
working voltage can be anywhere from 11 to 18V.
Lee
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