On Fri, 10 Feb 2012 19:22:33 -0000, "Gareth Magennis"
put finger to keyboard and composed:

Measure the RMS power consumed by the transformer.

How might you do that?

(I don't have a power meter kicking around)

My local Aldi has these for AU$13:
http://aldi.com.au/au/html/offers/28...12-01-30-08-10

The meter also reports the power factor.

Same model number (GT-PM-04), probably made by Globaltronics:
http://www.teknihall.nl/index.php?id=1129&L=nl

- Franc Zabkar
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