inconsistent ohm readings

[NicoHolic]

Interestingly, I've only see any wide resistance variation with some, but not all, ProTank heads. I don't seem to see more than ± 0.1Ω with Boge LR cartos, tanked or not, or with my sub-ohm rda builds, which follow along with my multimeter.

 

[Sthur]

I use a bunch of heads and coils on my evic but all are bought and not made. Mostly same as nico with +\- 0.1 ohms. My 1.5 carto has been same all the time even at 10w.

Is that any coil? Also you firmware up to date at 1.4?

 

[errolng]

protank/evod heads seem to have the widest ohm readings.

vivi dual coils have been the most accurate.
5-6 of them were all at 1.5 ohms.
single coils were +\- 0.3

 

[rasmith1959]

protank/evod heads seem to have the widest ohm readings.

vivi dual coils have been the most accurate.
5-6 of them were all at 1.5 ohms.
single coils were +\- 0.3

Is that with stock heads, or rebuilt ones? I'm just getting into rebuilding my PT/EVOD and T3 heads and haven't noticed this yet...

Sent from my Nexus 7 (2013) using Tapatalk 4

 

[errolng]

stock.
will probably start with rebuildables soon.
been too lazy

 

[tom_chang79]

protank/evod heads seem to have the widest ohm readings.

vivi dual coils have been the most accurate.
5-6 of them were all at 1.5 ohms.
single coils were +\- 0.3

I wonder if it has to do with the compression on the positive post anytime it's screwed it, making one of the legs, or both, making varied contact...

I know that it never does this with my RBA, the only difference I can think of, is my RBA's coils are fixed so long as I don't fidget anything on the deck, the positive post has little to no impact on the coil contact during screwing and unscrewing the unit on the eVic...

 

[errolng]

i know this is off topic, but does anybody get really really tight draws on their vivi novas with the evic?
don't remember it being so tight