[Boatanchors] GO9 Roller inductor cleaning

[Bob Macklin]

But if the silver is worn off allowing the brass part to see air, the copper
oxide is not a conductor.

Bob Macklin
K5MYJ
Seattle,, Wa.

----- Original Message ----- 
From: <sdaitch at ibb.gov>
Cc: <boatanchors at mailman.qth.net>
Sent: Thursday, February 23, 2006 10:32 AM
Subject: Re: RE: [Boatanchors] GO9 Roller inductor cleaning


> I think you will find that silver oxide is a conductor.
>
> Do a Google search on
>
> silver oxide conductivity
>
>
> 73
> Sheldon
>
>
> ----- Original Message -----
> From: Mark Foltarz <Foltarz at rocketmail.com>
> Date: Friday, February 24, 2006 3:23 am
> Subject: RE: [Boatanchors] GO9 Roller inductor cleaning
>
> >
> > Ian,
> >
> >  > I didn't even think of trying mine without cleaning
> >
> >    Well, neither did I. Someone on the AM list suggested not
> > cleaning them and
> > trying it first.
> >
> > > I imagine that the layer of silver oxide must be very thin, and
> > breaks down
> > > easily under the stress of the applied voltage.
> >
> > Thin yes, they are just plated. However, unless there is arcing,
> > ther plating
> > should remain. The arcing just destroys everything.
> >
> > > What sort of condition are your contact wheels in? Is there any
> > significant> deviation from roundness in the roller inductor or
> > the wheel?
> >
> >  Contact wheel is in good shape.
> >
> > > I was able to load up into a 50 ohm load using the 'Current'
> > setting of the
> > > switch, but not the 'Voltage' setting. That seems right, but
> > thought I'd ask
> > > anyway
> >
> >   I can't recall exactly but I do recall  that there was at least
> > deflection.I did get 125 watts  as masured on a Bird 43 into a
> > resistive load.
> >
> > de KA4JVY
> >
> > Mark
> >
> >
> > --- Ian Wilson <ianmwilson at earthlink.net> wrote:
> >
> > > Hi Mark,
> > >
> > > Very interesting. I didn't even think of trying mine without
> > cleaning, but
> > > perhaps "next time" I will.
> > >
> > > I imagine that the layer of silver oxide must be very thin, and
> > breaks down
> > > easily under the stress of the applied voltage.
> > >
> > > What sort of condition are your contact wheels in? Is there any
> > significant> deviation from roundness in the roller inductor or
> > the wheel?
> > >
> > > One more question: what sort of readings do you see on the RF
> > Current meter?
> > > I was able to load up into a 50 ohm load using the 'Current'
> > setting of the
> > > switch, but not the 'Voltage' setting. That seems right, but
> > thought I'd ask
> > > anyway.
> > >
> > > Thanks for the info. I hope to have some more time to work on
> > the GO-9 over
> > > the weekend.
> > >
> > > 73, ian K3IMW
> > >
> > >
> > >
> > >
> > >
> >
> >
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