Re: calculating copper plate indutance (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 21 Sep 2007 17:09:37 -0700
From: Ed Phillips <evp@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: calculating copper plate indutance (fwd)

Tesla list wrote:

>---------- Forwarded message ----------
>Date: Fri, 21 Sep 2007 10:23:27 +0200
>From: Kurt Schraner <k.schraner@xxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: calculating copper plate indutance (fwd)
>
>Hi Chris,
>
>the Method of
>"Radio Instruments and Measurements" Circular C74, U.S. Department of
>Commerce, National Bureau of Standards 1937 is adapted to, and implemented 
>in an Excel-spreadsheet for flat ribbon type flat spirals in:
>
>http://home.datacomm.ch/k.schraner/FlatRibbonCoil.zip
>
>This is the same, Bart Anderson has implemented in his
>http://www.classictesla.com/java/flatribbon/flatribbon.html
>
>It is also used, connected with TC-calculations, in my design Excel:
>
>http://home.datacomm.ch/k.schraner/TCplan.zip
>
>A copy of NBS Circular 74 is at Terry's site:
>
>http://hot-streamer.com/TeslaCoils/OtherPapers/Circ74/
>
>Best regards
>             Kurt
>
There's a lot of interest in C74 besides the inductance tables. The 
first part is a good survey of "the state of the art" of "Wireless" in 
1917. Compiled by George Southworth as a young man just out of school. 
He ended up doing lots of pioneering work on waveguides while at Bell 
Labs and had a most distinguished career. Terry's version is a bit 
awkward to look at but well worth the effort.

Ed