From:    Mark Rode <[log in to unmask]>
Subject: A question for our resident EEs.

120 >> 12 volt transformers for PC devices such as hubs, speakers and
modems never have polarized plugs.
However I have always made sure that the transformers are plugged in at the
correct direction relative to the printing on the device so as to put the
hot lead on the right. This is not always easy to arrange without loosing
some outlets on a surge protector or UPS.

Because the transformers never have polarized plugs I am not sure that this
is in fact necessary ?
Is this a good idea or does it matter ?

Thanks
Mark Rode
 ==========================================================================
It doesn't make any difference how you plug the brick or transformer in the
socket.  The AC is rectified (usually with a diode bridge) and filtered to
the right polarity regardless.

George & Mary Skokan ([log in to unmask])

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