Hi dR, My primary is 1.3 ohms so it appears mine has no resistor after all and they label them kind of back to front.
I think it looks like, "for use with a ballast resistor" means it doesn't already have one and "for use without a ballast resistor" seems to mean it already has one so no need to use an external one. Darnit ! 3 ohms is not a lot though must be only a 1.5 ohm resistor, I have to admitt I was fairly ignorant about these ballast resistors even though i've done a lot of working on cars, I just never took any notice.
Here is a link to the coil I have,
GT40R BOSCH IGNITION COIL BALLAST RESISTOR | eBay
OK I just found one with it written on the coil, " for use with external ballast resistor" The key word being external.
Lucas ignition coil DLJ-101 | eBay
EDIT: if I take postage into account I can get 2 Lucas coils for the same price as one Bosch GT40. Red paint must be more expensive than black paint.
I should have checked this out for my own benifit long ago, I appologise fully for not checking it out better sooner.
Cheers
I think it looks like, "for use with a ballast resistor" means it doesn't already have one and "for use without a ballast resistor" seems to mean it already has one so no need to use an external one. Darnit ! 3 ohms is not a lot though must be only a 1.5 ohm resistor, I have to admitt I was fairly ignorant about these ballast resistors even though i've done a lot of working on cars, I just never took any notice.
Here is a link to the coil I have,
GT40R BOSCH IGNITION COIL BALLAST RESISTOR | eBay
OK I just found one with it written on the coil, " for use with external ballast resistor" The key word being external.
Lucas ignition coil DLJ-101 | eBay
EDIT: if I take postage into account I can get 2 Lucas coils for the same price as one Bosch GT40. Red paint must be more expensive than black paint.
I should have checked this out for my own benifit long ago, I appologise fully for not checking it out better sooner.
Cheers
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