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In Reply to: RE: Hickok 6000a test slide switch repair? posted by fredtr on July 03, 2017 at 13:30:52
Those are gold plated, right? Do you mean that the plating looks uniform all along the contact after using the eraser? That would imply that the discoloration isn't an area where the gold is worn away, but rather a deposit of some sort on top. I wonder if the mating contacts are tinned (or other silver-colored alloy), and that's what gets deposited on top of the gold. Just trying to understand the situation you're describing...
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Buy Chinese. Bury freedom.
Follow Ups:
I can't tell if they are gold plated. It did look like the eraser removed whatever was deposited. And yes after eraser the color was uniform. The pincer contacts that they slide through, appear to be copper.
That's interesting, I hadn't paid that much attention when I was in there. Would be great if you could post about this in a few months and let us know how they're holding up. I'll take mine apart soon as I can find time.
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Buy Chinese. Bury freedom.
No problem, I will do that. Although I can't predict how much I will use the tester. If fix/mod equipment mainly for myself and occasionally a friend. So I use the tester only intermittently.
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