Is this a single piece of wire?
Hey, here's a great tutorial on doing parallel with 28:
The Art of the Parallel Coil: A Guide to Boosting Your Vaping Output
Also, have you tried twisted 28?
Look Here:
https://www.youtube.com/watch?v=pPjuJ0ZLxLI
Obviously, if you want a higher resistance, do more wraps.![]()
Well....I did a twisted 28 on my little Igo -10 wraps came out to 1 ohm exactly and it fit just fine, but I used a slightly bigger rod to do it.... I'll grab a pic and post it...
Here is a comparison....
1/16, 5/64, the rod I used, and a #0 screwdriver.![]()
And my coil I did the other day...it helps to tilt it slightly up on the wall side...
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That was the whole problem... trying to hit the 1.5 ohm mark with dual parallel coils using 28g wire without shorting out when the chimney is screwed on. I had no problem wrapping the coils or connecting them and everything metered out perfectly. The problem presented itself when I put the chimney on. The coils were too big.
The "problem" in that case....is that you're using 28 ga wire, but trying to get to 1.5 ohms. Just use 30 or 32 ga wire if you want true dual coils (in parallel, not end-to-end).
Even if 28 ga fit, you probably won't get enough watts to make it glow well and still have single wire length to get you to 1.5 ohms end-to-end. Hence the whole SLR craze.
That thick wire needs a lot of elections (part of the watts equation) flowing through it to make it glow. So I'm surprised a "long" single-coil wire (gap or not) at 28 ga @ 1.5 ohms even works with normal voltages. I would think it'd be quite cool.
Or you're splitting it and it's really parallel (and probably on a mech)
So, I repeat, there's no such thing as a serial dual coil.
It's either a single coil, with or without a gap between some coils, or it's a parallel circuit.
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Yeah, I know for dual parallel coils on that particular RBA I should go up to 30 or 32g wire. I just have a surplus of 28g and want to use it up.
And I see your point.... I guess it's truely one coil with a gap between wraps. It works great though! I'm using it on a Cana DNA 30 @ 15 watts so about 4.74v. It heats up just as fast as a standard single coil does and it allows for a coil over each air hole and wicks on both sides.
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