[Healeys] Ballast resistor wiring question

Kees Oudesluijs coudesluijs at chello.nl
Tue Dec 24 07:58:26 MST 2019

For the tail and brake lights you should not need "load resistors". You 
may need them for the indicator lights if you use the original style 
bi-metal flasher relay. You have to make certain though that the wiring 
and especially the contacts and fittings are perfectly clean and make 
100% contact.

If you are going to use the load resistors you need two for each double 
filament bulb as there are two power leads.

Kees Oudesluijs

Op 24-12-2019 om 15:22 schreef Michael Oritt:
> I purchased two of the Moss 170-941 red LED bulbs to use as 
> tail-lights/brake-lights to replace the standard 1157 dual filament 
> bulbs on my 100 (I have the reflector pods electrified and wired for 
> turn signals).  In addition to the bulbs I also purchased, at Moss's 
> suggestion, two 170-965 Load Resistors.
> The instructions for installation of the resistors simply talk about 
> the resistor's being installed between the power and ground leads to 
> each fixture but it does not specify which power lead.  My question 
> is:  do I connect the ground lead to the tail light power lead or the 
> turn signal power lead or does it matter?  I cannot envision 
> connecting it to both as that would defeat their separate function.
> TIA....Michael Oritt
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