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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Teflon\s+tubing\s+in\s+binocular\s+ferrites\s*$/: 3 ]

Total 3 documents matching your query.

1. Topband: Teflon tubing in binocular ferrites (score: 1)
Author: kurt-erich.finger@arcor.de
Date: Wed, 17 Jan 2007 19:33:35 +0100 (CET)
I read the intereting discussion about using binocular type ferrites for transformers in this reflector (Feb 2006). I understand that the wire should be in an additinal tube to avoid scratching the e
/archives//html/Topband/2007-01/msg00300.html (7,460 bytes)

2. Re: Topband: Teflon tubing in binocular ferrites (score: 1)
Author: David Sinclair <k3ky@radioprism.com>
Date: Thu, 18 Jan 2007 03:51:09 -0500
I think that PVC-insulated wires could be OK sometimes. It is true that some of the high perm cores are conductive. In addition, they do indeed have sharp edges, unlike most toroids. What I use for t
/archives//html/Topband/2007-01/msg00303.html (8,593 bytes)

3. Re: Topband: Teflon tubing in binocular ferrites (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 18 Jan 2007 09:37:37 -0800
Resistivity varies widely from one ferrite material to another. Some are such good insulators that Fair-Rite uses bare wire to wind coils through them (they call them Wound Beads), while others are h
/archives//html/Topband/2007-01/msg00307.html (7,688 bytes)

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