[Boatanchors] GO9 Roller inductor cleaning

[sdaitch at ibb.gov]

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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