[AMPS] floating a filament transformer

[carl seyersdahl]

  what would be the parameters for the toroid , for say , 8 or 10 amps ,
other than the size to accomodate the required wire size.???
    carl / kz5ca
----- Original Message ----- 
From: "Phil Clements" <philk5pc at tyler.net>
To: <jsb at digistar.com>; "R.Measures" <r at somis.org>
Cc: <amps at contesting.com>
Sent: Friday, September 17, 2004 11:55 AM
Subject: Re: [AMPS] floating a filament transformer


> > I have been reading with interest about the filament chokes for
> > 3-500Z,
> > etc.  In the photos I've seen of projects the filament choke appears
> > to be
> > bare wires around the ferrite rod.  Am I seeing this correctly?  How
> > does
> > this not short out and thereby not provide current to heat the
> > filaments?
> > Or is this wire typically coated with some kind of insulating
> > material.
> >
>
> The wire is insulated with an enamel coating.
>
> There is nothing magic about the ferrite rod.   A torroid will also
> work fine.
> Henry uses torroids on some of its models where space under the
> chassis is at a premium.
>
> (((73)))
> Phil, K5PC
>
>
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