Jim Coleman, Sr. wrote: > > Hi John: > > I was thinking about the switch being a "normally open, momentary contact" > type requiring a certain polarity. Perhaps I'm in error. > > Jim Coleman, Sr. > >Jim, one wire goes to the common contact and the other wire goes to the normally open contact. The wires can be reversed, it doesn't matter. If, however, one wire goes to the normally closed contact and the other goes to the common contact, that would short the two wires together all the time, until you press the switch. In other words, the switch would be closed when you want it open. > > > > -- Frank Cahill Associate Member, Piano Technicians Guild Northern Va
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