Where to get a "swivel" from???

[9W Monighan]

http://www.ebay.com/sch/i.html?_nkw=slip+ring&_rdc=1

Here is where I start looking. I've bought several over the years,different sizes and circuits. I never bought one from the China seller. I think Modelman has purchased one from these people. If you can't fit one just make one to the size you need.