Your machine is very special for two very good reasons. You need to inspect your wiring and see if it's OK. Sew-classic has some things you might read on it:
http://blog.sew-classic.com/categori...ne-repair.aspx
And you can google 'rewiring a featherweight' and see what you can find out about it. There are probably some videos on how to do it.
Good luck. I want to know what you find out.
Janis
You could try PM'ing lostn51 (Billy), Glen, or some of the others you find on the vintage machine site and ask them.