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                Singer 201 went bang , smelt and now won’t work?
 
                1965 Singer 275k sewing machine foot pedal?
 
                Singer 507?
 
                the thread is bunching on underside of fabric it looks like birdnest?
 
                Singer zigzag 457 Stylist not threading bobbin/making stitch?
 
                Bobbin won't wind?