This seems to be a contradiction: if you have a REGULATED power supply rated
at 4.5 V I would expect to measure 4.5 V also and especially in no load
condition ...
Nevertheless I would recommend to use a supply voltage rather 6 V than 4.5
V.
It rather seems that your power supply still delivers above 4.5 V to the
Newt, because I would expect that the Newt does not work properly anymore at
4.5 V.
Johannes
SNIP
> Just hope that the fridge/washing machine/oven/hot water system doesn't
> switch off while you are using it. Or all at once! Regulated power
> supplies are very cheap now, and you can test them easily. I'm running
> mine on a 4.5V regulated supply that I had sitting around. It actually
> applies around 5V_at_0A, and the plug fits perfectly. Backlight hums at a
> lower freq than with the 7V laboratory adapter though. Is that
> bad for it?
>
> Cheers,
>
> Damien
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