[Boatanchors] Article on changing from 2 to 3 wire power cords

[donroden at hiwaay.net]

I recall listening to my uncle's shortwave radio and there was a  
ground wire going outside and to the metal plumbing pipe.   The AC  
cord only had one blade on the plug.  I think I was a teenager before  
I understood how that worked.
Don W4DNR