How to check polarity?

Hi, is there anyone knowing how to check polarity to feed correctly gears not provided of detachable cord?

tubocaldo12-03-2008 7:14pm

stanwal Details Discussions Posts This discussion Message User 3,147 posts 12-04-2008 at 12:32am Copy Comment URL Report Comment Edit Delete With a polarized plug you may not have the best sounding orientation. See my post today concerning "how to get rid of hum" to see how to check this.