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

[SteveOrdinetz]

On Mon, Jul 13, 2009 at 9:26 PM, <RichardBJohnson at comcast.net> wrote:
> I once wanted to connect one of those AC/DC radios to an outside antenna for improved reception. Unfortunately, if the plug was inserted the "wrong" way, the antenna became charged with 120 volts.

For whatever reason, many/most of these radios switched the *ground*
(ie-chassis) side of the line instead of the hot.  This meant that
depending on which way you plugged it in, the chassis was hot when it
was on, or hot when off.