VLF Concentric Vs DD Coils

[mcjtom]

On 1/26/2015 at 5:36 PM, Steve Herschbach said:

About Search Coils by Dave Johnson

Search Coil Field Shape by Dave Johnson

Coil Basics by Carl Moreland

I know it's been some years ago, but just want to report that all three links seem broken.  I was able to find Carl's eye-opening article here:

https://bodhi3.files.wordpress.com/2013/05/coils.pdf

[Steve Herschbach]

1 hour ago, mcjtom said:

I know it's been some years ago, but just want to report that all three links seem broken.  I was able to find Carl's eye-opening article here:

https://bodhi3.files.wordpress.com/2013/05/coils.pdf

Yeah, I just love it when companies change websites and do not properly forward or replace links. That is the main reason I created the downloads area on this website, so I could link to stable resources like user manuals instead of creating an ever larger can of worms by linking direct to resources. I'd prefer direct links actually but this is a perfect example of why that does not work in the long run. I have linked to these articles numerous times over the years. Now Dave's are gone, only available on the Wayback Machine. I'll either link to the Internet Archive version, or put copies in the Downloads area to link to. When I get time and am in the mood I'll try and fix the various existing links in old threads.

https://web.archive.org/web/20230719033501/http://www.fisherlab.com/hobby/davejohnson/searchcoilsessayrevised.htm

https://web.archive.org/web/20230719033501/http://www.fisherlab.com/hobby/davejohnson/SearchcoilfieldshapeApril2012.pdf