My CG 500/550 Singer Sewing Machine's bobbin isn't working?
the thread is bunching on underside of fabric it looks like birdnest?
Bobbin won't wind?
Need an equivalent to an old Hunts WA71 capacitor/rectifier?
What size needles can I use for my Singer 39a3?
Need a service manual for a Singer Treadle Sewing Machine Model 66-1?