Dumb Question - do coils *need* to be made with non resistant leads?

[synic]

Do coils in an a7 or a reomizer need to be made with non resistant leads? If not, what's the advantage to doing them that way?

 

[IxJxOxHxNx]

I dont use non resistant wire in my A7's at all, i dunno what the benefit would be but im sure someone will be along eventually and let you know.

 

[Thrasher]

the nr leads are for devices that have looong lead lengths to keep resistance down. something like a phoenix or A7 the coil is practically sitting on the wire posts and not needed.

 

[LucentShadow]

Do coils in an a7 or a reomizer need to be made with non resistant leads? If not, what's the advantage to doing them that way?

In detail, as I see it: Some atomizers have a longer distance than others between the coil location and the places to attach the leads (terminals.) This can be detrimental in several ways, if the leads are resistant.

Mainly, the leads are using some of your overall resistance, thus reducing the work done at the coil and wick, and wasting it by heating the leads.

This can also cause some burnt liquid taste, as they can get red hot because of little to no contact with liquid to cool them, thus making the point at which they do contact the wick hotter because of it's proximity. Very short open-air leads may be OK, especially if the connector is a good heat sink. I've seen one person wrap bits of the wick around exposed legs to limit that problem, as well.

If the leads terminate into a rubber or plastic holder, as a few designs do, they can also scorch that, which is quite unpleasant. Some double-back and tightly twist the leads to lower their resistance, and thus the heat wasted. Others use non-resistant wire.

It all boils down to simply trying to keep as much of the heat/wattage/work concentrated in the place that it gives the most benefit, which is that section of wire which is in direct contact with a wet wick. That's the basic guideline, and it usually gets good results if followed correctly.