cleaning up edge connectors

[Jonathan Chapman]

If there's bad/deep corrosion, I hit it with the ink eraser (I have a bunch of Eberhard-Faber ones that look like a wooden pencil, you sharpen them like a pencil too). If that won't touch it, I use the stainless steel toothbrush.

Corey Cohen has some plating solution that you dip a pen in, intended for jewelry repair. The plating does not hold up well over copper, you need a layer of nickel over the copper first. So, if you're removing down to the copper, you'll have to find a way to put nickel on first.

Thanks,
Jonathan




------- Original Message -------
On Thursday, April 28th, 2022 at 15:47, Bill Gunshannon via cctalk <cctalk at classiccmp.org> wrote:


>
>
>
> I am hoping to restore my TRS-80 Model-I(s). As is usually
> the case with these the edge connectors are badly corroded
> and dirty and cleaning them with an eraser really doesn't
> help much. Back in the day there used to be something you
> could get that let you "gold plate" the edge connectors.
> Is anything like that still available? How about reflowing
> the pads using something like silver solder?
> If neither of these is doable or practical, what are people
> doing to clean up these connectors?
>
> bill