|Joined: ||Sun Nov 27th, 2005|
|Location: ||Fort Smith|
Even with a polarized plug be it 2 or 3 prong, the most important thing is to ensure that the High side of the AC goes to the switch and the Neutral to the other connection. A third wire for ground has always baffled me because if you go to your circuit breaker box you will see that Neutral and Ground are the same. But I am easily baffled. And if you decide to work on old radios, be especially cautious as many used what is called a "hot chassi".