They are rated for 5 A RF, so they operate in the vicinity of their maximum
ratings
at the 1500 W level, somewhat depending on loaded Q in the network.
Usually the duty cycle is low enough that heating will not be a major concern.
73/
Karl-Arne
SM0AOM
----- Original Message -----
From: "Joe Crawford" <crawfish@surfmore.net>
To: "John Irwin" <crazytvjohn@yahoo.com>
Cc: <amps@contesting.com>
Sent: Sunday, April 03, 2005 8:31 PM
Subject: Re: [Amps] Johnson 229-0202 roller
> I have one that has been used at that power level with no problems.
> Joe W4AAB
> John Irwin writes:
>
> > Dudes
> >
> > A question on the johnson 229-0202 roller inductor. this unit ,ceramic 18
> > uh roller inductor. silver plated
> >
> >>>Is the wire size on this unit big enough for a pi network roller, at the
> >>>1.5 kw level.<<
> >
> > I have never even seen a roller inductor outside of photo's. Your help
> > is needed>
> >
> > the link below shows a picture of a unit similar to the one I am
> > considering .
> >
> > http://www.surplussales.com/Antennas/TransVarInductor.html
> >
> >
> > john kb9tc
> >
> >
> >
> > ---------------------------------
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>
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