3 OHM BLACK PERTRONIX IGNITION COIL Use on cars without an external ballast resistor. TR2-TR3-TR3A-TR4-TR4A-TR250. ALSO TR6-SPITFIRE-GT6-MGB PRIOR TO 1973. PTR201, 40511, 143-265
3 OHM BLACK PERTRONIX IGNITION COIL Use on cars without an external ballast resistor. TR2-TR3-TR3A-TR4-TR4A-TR250. ALSO TR6-SPITFIRE-GT6-MGB PRIOR TO 1973. PTR201, 40511, 143-265
