Say for 12, 15 or 18 inch ones - does anyone produce just the cone with cylindrical back extension with coil for known or standard makes. ? Where the original has burnt threw the cylindrical former due to DC fault so could not try rewinding on the original. Seems a shame to chuck all that steelwork and magnets for the sake of some card and half an ounce of copper wire.
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on