My mother has a much loved Cannon foldaway grill A133 which, some years ago, was removed from her old cooker and wall mounted above a new oven at eye-level. Unfortunately the Burner now needs replacing. These cookers rarely come up for sale second-hand but a much more commonly seen cooker of the same sort of period is the Cannon 151 or 152 or even the A134. Does as anyone know if the burners for the grills on these cookers are interchangeable? or where i might be able to get a replacement burner for the A133 or indeed a replacement A133?