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#Post#: 1900-------------------------------------------------- |
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The reason lighter gauge works better for LJL |
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By: lynx wind Date: March 26, 2014, 3:02 pm |
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Ahha! I figured out why the heavier gauge wire doesn't work as |
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well for the LJL. It is very difficult without simultaneously |
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winding primary and secondary to get the coils to intermingle |
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enough. If one heavy gauge primary is just laid on top a |
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secondary it is as if the turns ratio is closer to 1:1 rather |
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than 6.8:1 |
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I guess any gauge wire will work if the two coils can |
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intermingle enough. |
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I got my 20 awg coil working fine once I seated them tighter |
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together. |
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A ferrite placed around the two coils helps too, but its best to |
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get the aircore coil working first. |
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#Post#: 1902-------------------------------------------------- |
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Re: The reason lighter gauge works better for LJL |
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By: sut Date: March 26, 2014, 6:25 pm |
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I was going to try that but I just have not had the time! or |
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knowledge!! to tell the difference on whether it was better or |
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not besides mine is all mucked up now laying in pieces on bench |
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#Post#: 1928-------------------------------------------------- |
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Re: The reason lighter gauge works better for LJL |
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By: lynx wind Date: March 27, 2014, 9:11 pm |
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So what I am finding is that a smaller gauge secondary is a |
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benefit because it can be fluxed better by the primary being in |
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closer proximity. The first LJL-sc I made I sent to Laser |
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Saber. His comment was it worked better than the typical |
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aircore and many of the ferrite core. I assumed it was |
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something about the 4" diameter and tight coil. It was a 30 awg |
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and 26 awg coil. Now I think it performed well because it is |
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very nearly saturated much like a ferrite core. |
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I will experiment with some various sizes of 30 awg and 24 awg |
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coils. We have to make sure the primary can handle up to 4 |
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amps. |
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I would recommend if you guys make these you wind them tightly |
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and bind them into as thin a coil as possible. It may be |
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possible to lose the ferrite and get back to a simple coil and |
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transistor. |
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We should also experiment with the diameter and number of turns. |
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#Post#: 1934-------------------------------------------------- |
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Re: The reason lighter gauge works better for LJL |
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By: happygolucky Date: March 28, 2014, 12:39 am |
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;D i like this idea tight |
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