Ni200 coil build calculator

Author: w | 2025-04-24

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Zephyrus Dual Coil NI200 Build

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Dual coil 0.2ohm ni200 coil build tutorial, for

Can produce.....and use whatever wattage is required to achieve the desired Temp setting.Now if you want big clouds from TC..... you probably won't get there using a factory made coil head.... as TC is more about flavor and consistency than big clouds. Gonna take some building trial and error to get super big clouds from the tank using TC. Clouds are about maximizing power usage. TC really more about minimizing power.Sent from my SCH-I605 using Tapatalk #5 Many thanks for your answers, guys. I understand now! #6 Use boost or punch preheat to ramp up faster and then tc holds the temp to keep your coil at the temp you set. If 500 seems comfortable and you dial in watts to get there it will level at the set temp and only apply enough power to maintain that set point.Sent from my iPhone using Tapatalk Just Frank Platinum ContributorMember For 5 Years #7 I don't understand why a bunch of the tanks from yesteryear used nickel coils. I mean if a person didn't know any better they would just use it in wattage mode. I have tanks that have Ni200 coils and I haven't put one in. They're like garbage to me because I don't trust nickel. Am I being too cautious and missing out by not using them nickel coils? #8 Not sure Frank. I believe there are a few ppl that are allergic to nickel so it fell from favor. Also the nickel is softer and doesn’t hold up as well. I don’t believe you’re missing something huge though.Sent from my iPhone using Tapatalk #9 I don't understand why a bunch of the tanks from yesteryear used nickel coils. I mean if a person didn't know any better they would just use it in wattage mode. I have tanks that have Ni200 coils and I haven't put one in. They're like garbage to me because I don't trust nickel. Am I being too cautious and missing out by not using them nickel coils? Simple early TC devices couldn't regulate other wires.... harder to regulate wire with resistance like SS. SO TC STARTED with Ni200. Then Ti.... then just recently SS...NI200 is safe enough if you dont get it hotter than about 800 degrees.. or red hot. Only time those temps are approached is when dry burning.Sent from my SCH-I605 using Tapatalk

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Ni200 dual coil build - YouTube

#1 Hi there,Usually I vape on ijoy 5s RDTA tanks (love them) but now I decided to try temperature control for the first time with my uwell crown and a Ni200 0.15 ohm coil. I am using a tesla 200W WYE mod (had issues with it, would not recommend it). The thing is I don't understand well how all this T control thing work. If I am setting a given temperature, why would I modify the wattage? (not good at Physics). My other question is that I read most people use 50-70W and 400-500ºF but I tried that and found it too cool, with only modest clouds, not a warm vape as I am used to. Should I go to higher temperatures or is that risky? Should I increase the wattage? That seemed to make no effectThanks!Federico MrMeowgi The Vapin' Drummer VU DonatorDiamond ContributorMember For 4 Years #2 I used those same coils in a crown tank years ago. The wattage is the ramp up of how fast you get to the desired temp. I ran about 40 watts and 500°..Sent from my LM-Q610(FGN) using Tapatalk #3 Hi there,Usually I vape on ijoy 5s RDTA tanks (love them) but now I decided to try temperature control for the first time with my uwell crown and a Ni200 0.15 ohm coil. I am using a tesla 200W WYE mod (had issues with it, would not recommend it). The thing is I don't understand well how all this T control thing work. If I am setting a given temperature, why would I modify the wattage? (not good at Physics). My other question is that I read most people use 50-70W and 400-500ºF but I tried that and found it too cool, with only modest clouds, not a warm vape as I am used to. Should I go to higher temperatures or is that risky? Should I increase the wattage? That seemed to make no effectThanks!Federico Good luck with that.... If you like warm vape with tons of clouds TC ain't going to do it for you .... If you have to vape at 500 degrees and 80 watts on Temperature Control and still not hot enough then stay on wattage power mode..... Get a Yihi..... Amazing TC.... Sent from my Pixel 2 XL using Tapatalk #4 As long as you keep the coil wet... you can vape at any temp the mod

Dual coil 0.2ohm ni200 coil build tutorial, for temperature

Little more difficult because there can be higher harmonic resonances that make assignment less reliable, but combined with the low frequency inductance and the self-resonant frequency, an equivalent parallel capacitance can be calculated. Since we know the coil geometry and its self-resonant frequency, we can use the spreadsheet calculator and see if we get agreement. The one unknown for the calculator is what to use for . Hence, we can vary so that the calculated results best match the experimental results. The data for several coils is shown in the table below along with the required fitting parameter.CoilDescription 𝜖jckt𝜖x best coil Dia. (mm)coil Len. (mm)D/LN turnswire dia (mm)wire loa (m)f_sr (MHz)L_lf 50kHz (uH)C_hf (pF)C_sr (pF)L_calc (uH)C_calc (pF)RmaxARG-11 on 10″ PE bucket2.31.9281704.016.9106.19.1519.81915.519.815.337500BRG-6 on 6″ PE flower pot 42.35156433.636.26.93.218.97.6>39.27.69.315200CRG-6 on 4.5″ PVC pipe form42.6123492.517.26.92.7922.66.735.37.46.77.417300D#14THHN on 4″ PVC form41.92103492.10172.95.5112.8631.164.9315190000The chart above shows a typical impedance sweep with a very clear resonance at about 19 MHz. At resonance, the coil has about 24 kΩ resistance with a modest bandwidth that would allow such a coil to be effectively used as a trap for a typical ham band. The measurements give good guidance for the value for needed for the coil calculator spread sheet. Using somewhere near 60% to 80% of the jacket dielectric constant seems appropriate for coaxial cable. With the test coils on the bench there were a couple of other questions to explore. I want to understand how a hard rain would effect the performance of the coils as traps, so I soaked the coils with as much water as they could hang on to, simulating a rain-soaked operation, and measured them again. I also wanted to know what would happen if I wound the coils on a layer of aluminum foil to enhance the capacitance. A summary of the four measurements for each coil configuration is shown below.CoilDescription𝜖jcktf_sr Dry (MHz)f_sr Wet (MHz)𝜖_xdry𝜖_xwetf_wet / f_dryf_sr Foil Dry (MHz)f_sr Foil Wet (MHz)Foil f_wet / f_dryR_mx Dry (Ohms)R_mx Wet (Ohms)R_mx Foil Dry (Ohms)R_mx Foil Wet (Ohms)Q Dryf_sr_Foil / f_sr_NrmlAPE-RG11 on PE bucket2.39.158.721.92.20.9534.964.740.95637500375003730018700330.54BPVC-RG6 on PE pot form~418.9218.172.352.600.96011.3611.000.968152001580080907100170.60CPVC-RG6 on PVC pipe form~422.621.422.63.000.94812.9912.260.944173501310085007100180.56D#14THHN on PVC form~412.8612.381.922.130.9635.425.010.924190000919002290014300750.42These measurements allow us to make a few observations. First, water wicked on the coils lowers the self resonant frequency about 5%. This could cause some de-tuning in the rain, but could probably be mitigated just by choosing the “dry” resonance a little on the high side. Which brings us to the second point; at resonance the real part of the complex impedance can be large, typical 20 kΩ or more. It is know than polyethylene has a much lower loss tangent than PVC insulation. That may be part of the reason why the large coil made from the PE-jacketed RG-11 had higher resonant impedance than the PVC-jacketed RG-6 coils. All of the coils tested have a large enough 5 kΩ bandwidth to cover the typical ham band. Winding the turns over a sheet of aluminum foil generates substantially more self capacitance so that much shorter conductors with lower inductance can be. Zephyrus Dual Coil NI200 Build The advantages of Titanium over Ni200 are many, including being able to build micro coils and to make contact with individual coil wraps (not spaced as you would with Ni200

Coil building with Ni200 : r/Vaping - Reddit

Used to achieve the same self-resonance. The Self-Resonant Coil Calculator spread sheet is not applicable in this case, so you would likely need to build and test anything you wished to make this way. For my test coils the self-resonant frequency was lowered between 42% and 60% when winding on top of the foil. The foil was gapped to allow the magnetic field in without driving currents in the foil. Nevertheless, the foil did slightly reduce the observed low frequency inductance of the coil by ~5% so there must be some image currents flowing in the foil. RG11 coil resonances wound without foil (dark) and over aluminum foil (light). The lower NanoVNA plot above shows the equivalent series inductance as a function of frequency for a coil wound with (pink) and without (red) the aluminum foil layer on the form. For all of the tests, the low frequency inductance seems to reach a minimum somewhere around 500 kHz. The small drop in inductance between 50 kHz and 500 kHz could be the result of magnetic field being excluded from the bulk of the coax as the skin effect takes hold. Self Resonant TrapsA 20 meter trapA resonant antenna trap is simply a parallel LC circuit that appears as a high impedance at the resonant frequency and thereby defines the electrical termination of a radiating element for the resonant frequency. When not at resonance, the trap will have a much lower impedance and will pass the RF beyond the trap. Self resonant coils made from the coaxial feed line allow the RF energy to be directly delivered to the antenna feed point while the self resonant coil defines the end of the radiating element and performs a function very similar to a feed line choke to keep RF energy off of the feedline back to the transmitter.This type of trap is very robust. It has no discreet capacitor so nothing to blow up even at high power. With no break in the coax insulating jacket, the antenna trap does well in the weather.I’ve built a few of these for a number of applications. Most often now I design for an extra half turn so that the coil naturally hangs from the cable. Using in the range of 3 to 5 yields coils that are easy to build and don’t use too much cable. Plastic flower pots can provide a range sizes of easily obtainable winding forms. You can tune the antenna by rolling the trap coil up or down the feed line a little until you achieve the resonance point you are looking for.1 Knight, David W., An introduction to the art of Solenoid Inductance Calculation with emphasis on radio-frequency applications2 Knight, David W., The self-resonance and self-capacitance of solenoid coils: applicable theory, models and calculation methods.

NI200 Coil Builds with a DNA 40 Device

A lowly coil of wire can be surprisingly difficult to understand and model correctly. I use coils of wire or coils of coax cable as trap inductors for various antenna designs that I have built. In the low frequency limit, the traditional inductance calculations work okay and can give you a pretty good estimate of a coil’s lumped inductance. However, there are two properties of coils of wire that start to make for difficulties as the frequency goes up. The first is that there is a natural resonance associated with the time it takes a speed-of-light wave to travel down the entire length of coil wire and bounce back. The second effect is a resonance between the lumped inductance and a lumped equivalent capacitance across the coil. Which effect is most dominant depends if the wire is wound in a long skinny coil or a short fat one. Even with short fat coils, you can interpret the resonance condition to be the “slow wave” double transit time for the coil of wire. We will be concerned with the first resonance, which is the strongest, but if you consider waves bouncing on a wire, you can see that there will naturally be higher harmonic resonances as well, which are not present in a lumped element analysis.The physical transition from what might best be described as a helical transmission line for long skinny coils, to a discreet lumped inductor with a parallel capacitance for short fat ones does not really matter much from an engineering perspective. What we would like is a simple model (the inductor with parallel capacitor for the fundamental resonance) and a way to accurately determine these parameters for a particular coil geometry. The lumped circuit model is handled well in the NEC codes so we have a way to go from a coil recipe to antenna models that use such a coil. This all works well for frequencies at or below the first coil resonance. Be aware that the lumped element approximation may not be accurate at frequencies higher than the first coil resonance. For any of this to be useful to the antenna designer, we need a reliable way to build coils with the properties we want.To tackle this problem, I’m going to start with what I think are the best empirical formulas that have been digested and expanded by David Knight. [1,2] I urge the driven reader to explore Knight’s webpages. Knight also demonstrates nicely the higher harmonic resonances that can be present on a coil of wire. His emphasis has been on verifying and improving the accuracy of inductance and capacitance expressions for single layer coils of uncoated (or thinly coated) wire. The expressions for the coil’s self capacitance are empirically determined by measuring the coil’s first self resonant frequency. Here we will use the current sheet model for inductance and Knight’s expression for capacitance to come up with a spread sheet “calculator” that can be used to design coils for a particular self-resonant frequency.

Ni200 Nickel Coil Build: Landmark RBA

Using our coil calculator, you can quickly and easily obtain key data relevant to your production, such as the coil weight, specific coil weight, outer diameter, and strip length of your steel material. Simply enter the values to calculate the desired parameter in the tool’s input fields. Coil weight + Specific coil weight Outer diameter + Specific coil weight Strip length Coil weight + Specific coil weight Please enter the values for the calculation here: Inner diameter (id) in Outer diameter (od) in Strip width (w) in Density in The density of 7850 kg/m3 is a typical standard value for all steel materials. Additional values to calculate the strip length (optional): Strip thickness (t) in Calculate Calculated coil weight and strip length*: Back to input fields Outer diameter + Specific coil weight Please enter the values for the calculation here: Strip width (w) in Inner diameter (id) in Coil weight in Density in The density of 7850 kg/m3 is a typical standard value for all steel materials. Additional values to calculate the strip length (optional): Strip thickness (t) in Calculate Calculated outer diameter and strip length*: Back to input fields Strip length Please enter the values for the calculation here: Strip width (w) in Strip thickness (t) in Density in The density of 7850 kg/m3 is a typical standard value for all steel materials. Calculate Calculated strip length*: Back to input fields *All of the calculated values are approximations. For precise information or to confirm the data, please get in touch with your contact at Waelzholz.. Zephyrus Dual Coil NI200 Build

Comments

User1002

Can produce.....and use whatever wattage is required to achieve the desired Temp setting.Now if you want big clouds from TC..... you probably won't get there using a factory made coil head.... as TC is more about flavor and consistency than big clouds. Gonna take some building trial and error to get super big clouds from the tank using TC. Clouds are about maximizing power usage. TC really more about minimizing power.Sent from my SCH-I605 using Tapatalk #5 Many thanks for your answers, guys. I understand now! #6 Use boost or punch preheat to ramp up faster and then tc holds the temp to keep your coil at the temp you set. If 500 seems comfortable and you dial in watts to get there it will level at the set temp and only apply enough power to maintain that set point.Sent from my iPhone using Tapatalk Just Frank Platinum ContributorMember For 5 Years #7 I don't understand why a bunch of the tanks from yesteryear used nickel coils. I mean if a person didn't know any better they would just use it in wattage mode. I have tanks that have Ni200 coils and I haven't put one in. They're like garbage to me because I don't trust nickel. Am I being too cautious and missing out by not using them nickel coils? #8 Not sure Frank. I believe there are a few ppl that are allergic to nickel so it fell from favor. Also the nickel is softer and doesn’t hold up as well. I don’t believe you’re missing something huge though.Sent from my iPhone using Tapatalk #9 I don't understand why a bunch of the tanks from yesteryear used nickel coils. I mean if a person didn't know any better they would just use it in wattage mode. I have tanks that have Ni200 coils and I haven't put one in. They're like garbage to me because I don't trust nickel. Am I being too cautious and missing out by not using them nickel coils? Simple early TC devices couldn't regulate other wires.... harder to regulate wire with resistance like SS. SO TC STARTED with Ni200. Then Ti.... then just recently SS...NI200 is safe enough if you dont get it hotter than about 800 degrees.. or red hot. Only time those temps are approached is when dry burning.Sent from my SCH-I605 using Tapatalk

2025-04-11
User2727

#1 Hi there,Usually I vape on ijoy 5s RDTA tanks (love them) but now I decided to try temperature control for the first time with my uwell crown and a Ni200 0.15 ohm coil. I am using a tesla 200W WYE mod (had issues with it, would not recommend it). The thing is I don't understand well how all this T control thing work. If I am setting a given temperature, why would I modify the wattage? (not good at Physics). My other question is that I read most people use 50-70W and 400-500ºF but I tried that and found it too cool, with only modest clouds, not a warm vape as I am used to. Should I go to higher temperatures or is that risky? Should I increase the wattage? That seemed to make no effectThanks!Federico MrMeowgi The Vapin' Drummer VU DonatorDiamond ContributorMember For 4 Years #2 I used those same coils in a crown tank years ago. The wattage is the ramp up of how fast you get to the desired temp. I ran about 40 watts and 500°..Sent from my LM-Q610(FGN) using Tapatalk #3 Hi there,Usually I vape on ijoy 5s RDTA tanks (love them) but now I decided to try temperature control for the first time with my uwell crown and a Ni200 0.15 ohm coil. I am using a tesla 200W WYE mod (had issues with it, would not recommend it). The thing is I don't understand well how all this T control thing work. If I am setting a given temperature, why would I modify the wattage? (not good at Physics). My other question is that I read most people use 50-70W and 400-500ºF but I tried that and found it too cool, with only modest clouds, not a warm vape as I am used to. Should I go to higher temperatures or is that risky? Should I increase the wattage? That seemed to make no effectThanks!Federico Good luck with that.... If you like warm vape with tons of clouds TC ain't going to do it for you .... If you have to vape at 500 degrees and 80 watts on Temperature Control and still not hot enough then stay on wattage power mode..... Get a Yihi..... Amazing TC.... Sent from my Pixel 2 XL using Tapatalk #4 As long as you keep the coil wet... you can vape at any temp the mod

2025-04-12
User3149

Used to achieve the same self-resonance. The Self-Resonant Coil Calculator spread sheet is not applicable in this case, so you would likely need to build and test anything you wished to make this way. For my test coils the self-resonant frequency was lowered between 42% and 60% when winding on top of the foil. The foil was gapped to allow the magnetic field in without driving currents in the foil. Nevertheless, the foil did slightly reduce the observed low frequency inductance of the coil by ~5% so there must be some image currents flowing in the foil. RG11 coil resonances wound without foil (dark) and over aluminum foil (light). The lower NanoVNA plot above shows the equivalent series inductance as a function of frequency for a coil wound with (pink) and without (red) the aluminum foil layer on the form. For all of the tests, the low frequency inductance seems to reach a minimum somewhere around 500 kHz. The small drop in inductance between 50 kHz and 500 kHz could be the result of magnetic field being excluded from the bulk of the coax as the skin effect takes hold. Self Resonant TrapsA 20 meter trapA resonant antenna trap is simply a parallel LC circuit that appears as a high impedance at the resonant frequency and thereby defines the electrical termination of a radiating element for the resonant frequency. When not at resonance, the trap will have a much lower impedance and will pass the RF beyond the trap. Self resonant coils made from the coaxial feed line allow the RF energy to be directly delivered to the antenna feed point while the self resonant coil defines the end of the radiating element and performs a function very similar to a feed line choke to keep RF energy off of the feedline back to the transmitter.This type of trap is very robust. It has no discreet capacitor so nothing to blow up even at high power. With no break in the coax insulating jacket, the antenna trap does well in the weather.I’ve built a few of these for a number of applications. Most often now I design for an extra half turn so that the coil naturally hangs from the cable. Using in the range of 3 to 5 yields coils that are easy to build and don’t use too much cable. Plastic flower pots can provide a range sizes of easily obtainable winding forms. You can tune the antenna by rolling the trap coil up or down the feed line a little until you achieve the resonance point you are looking for.1 Knight, David W., An introduction to the art of Solenoid Inductance Calculation with emphasis on radio-frequency applications2 Knight, David W., The self-resonance and self-capacitance of solenoid coils: applicable theory, models and calculation methods.

2025-04-23
User1439

A lowly coil of wire can be surprisingly difficult to understand and model correctly. I use coils of wire or coils of coax cable as trap inductors for various antenna designs that I have built. In the low frequency limit, the traditional inductance calculations work okay and can give you a pretty good estimate of a coil’s lumped inductance. However, there are two properties of coils of wire that start to make for difficulties as the frequency goes up. The first is that there is a natural resonance associated with the time it takes a speed-of-light wave to travel down the entire length of coil wire and bounce back. The second effect is a resonance between the lumped inductance and a lumped equivalent capacitance across the coil. Which effect is most dominant depends if the wire is wound in a long skinny coil or a short fat one. Even with short fat coils, you can interpret the resonance condition to be the “slow wave” double transit time for the coil of wire. We will be concerned with the first resonance, which is the strongest, but if you consider waves bouncing on a wire, you can see that there will naturally be higher harmonic resonances as well, which are not present in a lumped element analysis.The physical transition from what might best be described as a helical transmission line for long skinny coils, to a discreet lumped inductor with a parallel capacitance for short fat ones does not really matter much from an engineering perspective. What we would like is a simple model (the inductor with parallel capacitor for the fundamental resonance) and a way to accurately determine these parameters for a particular coil geometry. The lumped circuit model is handled well in the NEC codes so we have a way to go from a coil recipe to antenna models that use such a coil. This all works well for frequencies at or below the first coil resonance. Be aware that the lumped element approximation may not be accurate at frequencies higher than the first coil resonance. For any of this to be useful to the antenna designer, we need a reliable way to build coils with the properties we want.To tackle this problem, I’m going to start with what I think are the best empirical formulas that have been digested and expanded by David Knight. [1,2] I urge the driven reader to explore Knight’s webpages. Knight also demonstrates nicely the higher harmonic resonances that can be present on a coil of wire. His emphasis has been on verifying and improving the accuracy of inductance and capacitance expressions for single layer coils of uncoated (or thinly coated) wire. The expressions for the coil’s self capacitance are empirically determined by measuring the coil’s first self resonant frequency. Here we will use the current sheet model for inductance and Knight’s expression for capacitance to come up with a spread sheet “calculator” that can be used to design coils for a particular self-resonant frequency.

2025-04-16

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