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RTA's & Ohms Law on a Regulated Box Mod
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Fatboy Offline
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Post: #21
RE: RTA's & Ohms Law on a Regulated Box Mod
Wild, I would suggest watching a bunch of youtube videos.... those coils look pretty big...if you have the wire, you don't need a Coil Master, a simple small screwdriver or drill bit and you can wrap a few coils...remember Steam Engine is your main resource to determine the wire wraps, inner dimension (id), desired ohms, etc... in order to get the desired resistance.
26-05-2017 09:16 PM
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Wildy84 (05-26-2017)
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Post: #22
RE: RTA's & Ohms Law on a Regulated Box Mod
Here's a couple of pics with the info of the coils I have got. Was looking at the steam engine but a few factors look confusing, can you help with imputting the info?

Thanks.
[Image: DSC_0780_zpsezmscqjt.jpg]

[Image: DSC_0779_zpswtoxot5i.jpg]
26-05-2017 10:33 PM
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Fatboy Offline
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Post: #23
RE: RTA's & Ohms Law on a Regulated Box Mod
Wild....no coil kit is required for pre-wrapped coils like that. I don't have the RBA deck for the 120, RBA comes with some coils in the box, may already have coils installed. Easy if already installed but I know it includes a set of simple coils - the pre-wrapped coils will come in @ approx 0.18Ω ensure the screws are tight (not too tight to strip the screws) and you can then test the resistance on an ohm reader or regulated mod....pulse it, and wick....wicking is usually the biggest learning curve and honestly, not complicated but requires patience and practice...
26-05-2017 11:37 PM
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Wildy84 (05-27-2017)
Wildy84 Offline
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Post: #24
RE: RTA's & Ohms Law on a Regulated Box Mod
The Coil Master kit is good to have tho as it comes with an Ohm reader, ceramic tweezers, cutters etc so I thought what the heck and bought the kit. Plus it's good to have incase I do decide to create my own coils in the future once I'm a bit more familiar with the whole RBA system.

There is dual coils pre installed on the RBA already which usually do read between 0.18 and 0.20 Ohm, however the other coils I bought in that tin says that the resistance is 0.35 Ohm.

What about these hot spots I keep hearing about on coils also, what are those?
27-05-2017 12:52 AM
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TinWhisker Offline
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Post: #25
RE: RTA's & Ohms Law on a Regulated Box Mod
Once they're installed, you pulse them until they begin to glow and let off. For duals, squeeze (gently) the one that glows first. Repeat, get them both squeezed up right and they'll glow center-out together. You can lightly strum across them like guitar strings with the tweezers too. Be sure NOT to be firing if you are using metal tweezers, but with ceramics you can squeeze while firing. But the metal gets soft as it gets hot so don't try to be the Boston Strangler or anything.
27-05-2017 12:55 AM
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Fatboy (05-27-2017), Wildy84 (05-27-2017)
Wildy84 Offline
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Post: #26
RE: RTA's & Ohms Law on a Regulated Box Mod
Ok folks,

So I want to build a dual coil RTA setup and I've got clapception coils which are 0.35ohm, so far I've installed one of these coils and tried fiddling about with it but it's currently reading at 0.46ohm and should be 0.35ohm. Why will it not read at 0.35ohm like it says on the tin?
[Image: DSC_0787_zpstlsyfciy.jpg]
29-05-2017 07:38 PM
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Fatboy Offline
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Post: #27
RE: RTA's & Ohms Law on a Regulated Box Mod
(29-05-2017 07:38 PM)Wildy84 Wrote:  Ok folks,

So I want to build a dual coil RTA setup and I've got clapception coils which are 0.35ohm, so far I've installed one of these coils and tried fiddling about with it but it's currently reading at 0.46ohm and should be 0.35ohm. Why will it not read at 0.35ohm like it says on the tin?

W, you're going to likely have a problem with those coils in that deck...you won't likely be able to insert the chimney cap without it hitting the side (and will short out).... you may be able to pull the coil tighter to the posts to get the clearance required - did you get wire as well? If so, you may want to jump into a simple micro/macro single wire coil wrap @ 2.5-3mm inner diameter.

As for the variance in resistance, once you install the 2nd coil, the resistance is cut in half... 2 coils should ohms in at 0.15-0.18 ohms...
29-05-2017 07:52 PM
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Almost Jaded Offline
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Post: #28
RE: RTA's & Ohms Law on a Regulated Box Mod
Those coils are far too large for the deck you're using, you're gonna have a problem there.  With most RTA's you want to get coils with a 2.5mm diameter, larger ones rarely fit.

Remind one liberal per day, that laws affect only the law-abiding.
29-05-2017 08:01 PM
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TinWhisker (05-29-2017)
Wildy84 Offline
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Post: #29
RE: RTA's & Ohms Law on a Regulated Box Mod
Yea those coils are:
Size: 1.5*7.5mm Inner: 3mm.

I do have this wire also which is 24GA
[Image: DSC_0789_zpsqckjnokh.jpg]
29-05-2017 08:08 PM
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Fatboy Offline
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Post: #30
RE: RTA's & Ohms Law on a Regulated Box Mod
W, you'll need to make a few really simple coils try a micro coil is super easy. Doesn't have to be perfect to be functional.

Here is another great tutorial on simple coils.
29-05-2017 08:23 PM
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