JS formulated on Wednesday :
And as we are looking back, do you know when the UK went from round
pins mains sockets to square pins?

I heard that 13 amp style plugs were introduced as early as during the
war, as an economy measure - initially round pin version with a fuse as
one of the pins. I don't think they achieved any popularity until the
early '60, with the rectangular pinned version.


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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk