[sdiy] wall wart confusion

[amokan]

Based on that answer, I'm guessing that the cheap wall warts are switching?
The difference between that and the "big heavy variety" are? Aside from the
heavy part :) I thought they all used some sort of transformer to step-down
the juice.



On 2/26/06, Aleks Clark <aleks.clark at gmail.com> wrote:
>
> IIRC, voltage is a matter of potential, and so long as your wall wart is
> of the big heavy variety, ie, uses a transformer instead of being a switched
> power supply, you could just use an 18v or 2x9v's the same way as you would
> 2 9v batteries. But test before you hook it to anything important :D
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