Hi Purplepassion, I just had the same problem on my 1947 Featherweight. Bought a new footpedal for about $15.00 and it came in a few days. After 60 years service I figured it was a job well done and retired the old one. I also purchased all of the attachments that I didn't have.
http://www.221parts.com
4044 Claremont Drive
New Port Richey, FL. 34662