[BC] 1950s' transistor radios pointed to more tech changes

[RichardBJohnson at comcast.net]

Interesting information here:

http://en.wikipedia.org/wiki/AC_power_plugs_and_sockets

Note that the British still think it is more important to easily insert a plug in any direction, so their (200 volt -- no less) plugs have two identical cylindrical prongs!

Cheers,
Richard B. Johnson
Book: http://www.AbominableFirebug.com/

----- Original Message -----
From: "Dave Dunsmoor" <mrfixit at min.midco.net>

Anybody know when polarized plugs really came into widespread use?