gear replacement?

Singer zigzag 457 Stylist not threading bobbin/making stitch?

Need a service manual for a Singer Treadle Sewing Machine Model 66-1?

1965 Singer 275k sewing machine foot pedal?

the thread is bunching on underside of fabric it looks like birdnest?

Singer 507?

Bobbin won't wind?

Presser foot is loose?

My CG 500/550 Singer Sewing Machine's bobbin isn't working?

Engine revving up ?

What size needles can I use for my Singer 39a3?

Singer 201 went bang , smelt and now won’t work?

Need an equivalent to an old Hunts WA71 capacitor/rectifier?