| | Re: Mains / USB
>When I was a kid, there was a two way bayonet adapter plugged into the
>electric light pendant. One side of it took the light bulb and the other
>was where you plugged in the electric iron. It was a perfectly normal
>setup back then. Many houses only had electric lighting and (if it was a
>more modern property) one or two 5amp (2 pin) outlets. To heat a bedroom
>if one of us was poorly, or in cold weather the bathroom - yes, the
>bathroom - , my father had a thirty foot lead on the electric fire and the
>lead would trail down to the cupboard under the stairs where it plugged into
>one of the two pin 5amp sockets. No circuit had an earth of any sort and
>the house was only built in 1937. How things have changed.
I have still got my Y shaped double bayonet adapter. It was originally
used in the dark cupboard under the stairs that we rather grandly
called "the pantry". One side for the contact printer (later an
enlarger), and the other for the orange safe-light.