Need to rewire a Carlisle

[Jennifer]

Hello!  My carlisle has bit the dust.  The light bulb thingy is burnt and needs replacing.  I am having one heck of a time finding a replacement socket, preferably ceramic rather than plastic, and one with that perpendicular silver arm that screws in.  Does anyone have a good source online or local to find sockets?  I've tried Ace, Lowes, and Home Depot.   

[Jennifer]

Ok, I hadn't thought of that-seems like the inner arm wouldn't attach? I'll check it out-Thanks!