[ARC5] roller incuctior cleaning

[Richard Knoppow]

    I don't have an absolute answer but I think these rollers were 
silver plated. Silver oxide is a good conductor but silver sulfide is 
not and they look much the same. Both can be removed by a tarnish 
remover like TarnX.  Wipe the surface and rinse thoroughly.  Also make 
sure the roller and the shaft it runs on are clean. On more modern 
antenna tuners with roller inductors I have found running them dry is 
best although a thin coat of Vaseline will protect them from future 
oxidation or sulfurizing.  The Vaseline can be cleaned off easily with 
some naphtha if it doesn't work.

On 7/5/2016 11:55 AM, Joe Munson wrote:
> So how would be the best way to clean the roller inductor assemble in
> command sets and other old mil equipment such as BC 375, TCS, etc.   All
> of my such sets have many dead spots when tuning the roller inductor
> assembly.  So what do you use to clean the roller, the roller shaft and
> the inductor coil windings?   Yes, I have tried DeOxit, and other
> contact cleaners to no avail.  Maybe my procedure was not proper.
>
> Joe Munson
> WA4VAG
> 513-919-1210
>
>
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL