Independent Ignition Supplies - Specialist magneto component suppliers Online Catalogue : Ford Model 'T' & Fordson Model 'F' Trembler Coil (278) Stock Number 278. Trembler Coil - Reproduction - In box combed wooden boxes just like the originals Price:  £81.75 (Excluding: VAT at 17.5%) Online Catalogue : Ford Model 'T' & Fordson Model 'F' Independent Ignition Supplies - Specialist magneto component suppliers