[TowerTalk] Fwd: Inductor Design and Voltage Breakdown

[Steve Hunt]

Jim,

This one may be of interest:
http://hamwaves.com/antennas/inductance.html

It's the most accurate I've found. To quote the web page:

"The inductor calculator presented on this page is unique in that it 
/employs the n=0 sheath helix waveguide mode to determine the inductance 
of a coil,/ irrespective of its electrical length. This allows for more 
accurate inductance predictions at high frequencies. Furthermore, /the 
calculator closely follows the National Institute of Standards and 
Technology (NIST) methodology/ for applying round wire and 
non-uniformity correction factors and /takes into account both the 
proximity effect and the skin effect."

/Good luck!

Steve G3TXQ/


/
On 31/07/2015 18:43, Jim Brown wrote:
>
> Thanks, Jim. All comments appreciated. Do you know of any good 
> calculators online that run through the equations for single layer 
> coils like this?  N6BV pointed me to http://www.zerobeat.net/G4FGQ/ 
> which yielded a DOS program called SOLNOID3.EXE that computes things 
> like self-resonance, dissipation, and so on. I had to resurrect an old 
> computer to run it. Many years ago, I wrote a QPro calc for the 
> classic equations in the Handbook, which I found to correlate nicely 
> with what I built.
>
> 73, Jim
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