This could be what Bill refers to? The first anti theft device? https://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=89824
None of the links in that thread are any good but you can PM those guys.

Was also thinking ballast resistor? broken off?


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn