*Found*
Hello all.  I have a new-to-me Viking 500 that has a burned switch, SW108 section C.  This is the second one I have seen in burned condition, so I assume it was a common problem on the 500.  I was able to rebuild one for another 500; however this recent one is in dire condition and is missing the internal rotor and contacts.  If anyone has a good switch, a rebuildable switch or even usable parts, I am interested.
Attached photo of my other switch after repairs.
Thanks.
Russ
KW6T
rt998cc@gmail.com