[GreenKeys] Filing Contacts - Don't

[Andy KN4UCL]

yeah i've repeated the process three times now.... presumably my repeated
filing only works temporarily because exposes a clean contact which
tarnishes very rapidly without the protective layer <SIGH>

On Mon, Jan 16, 2023 at 12:23 PM Tom Hunter <tomhenryhunter at gmail.com>
wrote:

> Andy,
>
> Filing contacts is likely to take off a thin coating contact of contact
> material.
>
> I use strips of card stock pulled between contacts as I hold them
> together. They will will come out with a black stripe.
> I usually dampen the strips with alcohol at first. Then I pull dry strips
> through until they come out clean. I will
> go through many strips. Paper is cheaper than new contacts!
>
> If you have been filing contacts you may already have ruined them and they
> will need to be replaced.
>
>
> Tom   N3CRK
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