Multi-layered Secondary HELP!!

• To: "'Tesla List'" <tesla-at-pupman-dot-com>
• Subject: Multi-layered Secondary HELP!!
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Tue, 17 Feb 1998 08:36:30 -0600
• Approved: tesla-at-stic-dot-net

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From:  David Huffman [SMTP:huffman-at-FNAL.GOV]
Sent:  Tuesday, February 17, 1998 8:16 AM
To:  Tesla List
Subject:  Re: Multi-layered Secondary HELP!!

Here is my comment, for what it is worth. Two coils wound in opposite
directions will cancel the magnetic field (right hand rule) giving close to
zero inductance. This is one why of making non-inductive resistors.
Dave Huffman

>From:  Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
>Sent:  Monday, February 16, 1998 2:07 PM
>To:  Tesla List
>Subject:  Re: Multi-layered Secondary HELP!!
>
>Hi all,
>          In reading Bert Pool's post on this subject, an interesting
>idea comes to mind. We know that if you wind a two layer coil with
>the windings wound in the same direction and connected in parallel it
>will work whether inductively coupled to a primary or used as an
>extra coil. But what about if the windings are going in the opposite
>direction? Inductive coupling is going to lead to something of a
>short circuit, at least near the base where coupling is highest. But
>what about if it is run as an extra resonator? What properties will
>it have? Probably b-all inductance. Any thoughts on this? Perhaps I
>should just wind one and check it out.
>
>Malcolm
>
>
>

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