Re: New Coiler

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: New Coiler
From: Tesla List <tesla-at-stic-dot-net>
Date: Wed, 10 Sep 1997 18:46:27 -0500
Approved: tesla-at-stic-dot-net


From: 	Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: 	Wednesday, September 10, 1997 2:41 PM
To: 	tesla-at-pupman-dot-com
Subject: 	Re: New Coiler

Hello there Patrick,

>From:  Patrick J. Gustafson[SMTP:gustafpj-at-uwec.edu]
>Sent:  Tuesday, September 09, 1997 4:12 AM
>To:    Tesla List
>Subject:   New Coiler
>
>Hello all, 
>
>I have been patiently reading the list for quite some time now, but I
>could not get my questions to post on the list.   Thanks to Chip, this
>problem has been finally resolved. Here are the concerns that I have 
>as
>of yet:
>
>
>1.   I have a two layer secondary coil with 28 gauge wire close wound
>for 21.6" (both layers).   The first layer is at 6" in dia. and the
>second layer is at 6.125" in dia.   The calculated resonant freq's are
>108.71 kHz and 106.45 kHz respectively, and the calculated inductances
>are 91.84 mH and 95.49 mH also respectively.   Now since I layered in
>parallel, can I add together the inductance values directly? ( i.e. 
>the
>new value would be 187.33 mH)   

Since the coils are coupled to k=1 (near as), the inductance is 
roughly 90mH (allowing for a bit of extra leakage inductance due to 
the differences between them).

Malcolm