[TowerTalk] OT: Inductor Calculator

[terry burge]

Hey folks,

I look at these coil calculators and come to the only conclusion is the wrong question is being answered. Example:

If I have 130 feet of 12 gauge multi-strand insulated house wire (from Lowes) how large of 3-4" coil wound on a PVC form do I need to resonate it at 1830Khz? 1850Khz? 1880Khz?  1920Khz? 

Or using a commercial coil from what I believe was an AM broadcast station like pictured on my qrz page? (qrz/KI7M)

Or if you are real ambitious using some small Aluminum tubing from DXEngineering or similar source?

These coil formulas always seem to want some factors that may not be known about using the available material like 1/4" or 1/8" copper tubing. Or number 8 gage copper I see in the local Lowes or Home Depot. And how to get something silver plated once out of high school chemistry class I don't know?

Just a thought or two.

Terry
KI7M
> On February 27, 2019 at 7:26 AM "Richard (Rick) Karlquist" <richard at karlquist.com> wrote:
> 
> 
> This may be helpful:
> 
> http://hamwaves.com/antennas/inductance.html
> 
> Rick N6RK
> 
> On 2/26/2019 9:06 PM, Gedas wrote:
> > Once upon a time I found a site that had an awesome online calculator 
> > for calculating the inductance of single layer coils where you could 
> 
> > Gedas, W8BYA
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