quattro Digest, Vol 13, Issue 41

[Edward R. Wendell IV]

I've been following this thread but I don't understand this. Why would 
a common ground connection prevent having individual relays for the 
power supply to each filament?

> In terms of extra relays, etc, it also depends upon the access to the
> back of each individual lamp. In the case of the type 44 turbo lamps,
> there is only one power connector to the "ground" lead, one for each
> +12V lead and one for the city lamp. So, extra relays w/rt to the high
> beam won't help. In the case of the original lister's type 85 model 80
> lamps, this isn't an issue, as there is only one high and one low beam
> filament. As for relays, there are obviously a relay for each beam, 
> high
> and low. I run two complete harnesses for each side, so the total IS
> 4 relays, BTW, and this also controls the current load effectively
> increasing
> current carrying capacity.
>
> LL - NY