I have to clean those rotary coils also. I use a contact
cleaner on a rag. Press the rag on the coil and rotate
the coil a few times to clean.
73,
Charlie, N0TT
On Thu, 4 Apr 2013 08:13:46 -0700 "Tom Osborne" <w7why@frontier.com>
writes:
> Hi All
>
> I have a MFJ-989C tuner that hasn't been used for a long time. I
> need to
> clean the coil as it is scratchy when I move it.
>
> What is a good substance for cleaning the coil and wiper so it will
> make
> good contact again.
>
> I just use this tuner on the number 3 radio at low power all the
> time. 73
> and thanks
> Tom W7WHY
>
>
>
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