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 <[email protected]> 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
