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| Test Equipment Anonymous (TEA) group therapy thread |
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| mnementh:
Oh fuck me... Ever since I finished my Nuking the Mouse writeup, I've been searching all over my shop for my little container of 0.100" socket header... even while I was in the Discord... and all this while they've been at the bottom of my larger container of assorted 0.100" pin headers... mnem |
| Zoli:
--- Quote from: mnementh on July 09, 2022, 10:32:10 pm --- --- Quote from: Zoli on July 09, 2022, 08:41:35 pm --- --- Quote from: mnementh on July 09, 2022, 05:49:21 pm --- --- Quote from: Zoli on July 09, 2022, 05:27:30 pm --- --- Quote from: mnementh on July 09, 2022, 05:05:55 pm ---The cure is to buff it down with very fine sandpaper (like 800-2000 grit); I use this fingernail buffing board. Yeah, I know it's pretty horrible looking; it's prolly older than my daughter. ;) --- End quote --- For silver tarnish removal an eraser does wonders, without removing any of the underlying silver. --- End quote --- You want to remove some of the silver, to remove the divot (wear crater) and make the contact flat again. As you can see in the pic, there's more than enough material to do this several times. This leaf spring is made of thin hardened brass, so pretty fragile; trying to rub it with a pencil eraser hard enough to remove anything is much more likely to mangle it than do any good. mnem :-/O --- End quote --- Case-by-case use; you don't want to use sandpaper on two flat surfaces, the chance to FUBAR is too big. --- End quote --- What are you talking about? Not on two surfaces; just one. The point is to make the contact flat again, as it's had a hole worn in it by the other contact which is a stamped metal chisel point. We're talking 0.10-0.20mm here. --- End quote --- Relays, contactors - most of them has parallel contacts, not round ones. I've fixed quite a few with the eraser on the top of the BIC disposable mechanical pencil. |
| mnementh:
--- Quote from: Zoli on July 09, 2022, 11:22:00 pm --- --- Quote from: mnementh on July 09, 2022, 10:32:10 pm ---What are you talking about? Not on two surfaces; just one. The point is to make the contact flat again, as it's had a hole worn in it by the other contact which is a stamped metal chisel point. We're talking 0.10-0.20mm here. --- End quote --- Relays, contactors - most of them has parallel contacts, not round ones. I've fixed quite a few with the eraser on the top of the BIC disposable mechanical pencil. --- End quote --- "Most of them" is not these micro-switches. All you have to do is look at the pics to see that's not the case here. What you're going on about simply is not applicable in this case, I'm sorry. And in hundreds of mice I've fixed this way, I've never seen switches that weren't identical construction inside. Think of it like a cheap rocker switch (the kind where one contact is just a rolled edge of brass) that has a pit burned in the silver on the contact arm. An eraser is not going to fix that. Just like with a burned contactor. Cheers, mnem *toddles off to nuke a monitor* |
| mnementh:
--- Quote from: bd139 on July 09, 2022, 10:19:16 pm ---Oh great now I'm going to get nightmares tonight :-DD --- End quote --- mnem "There are worse things that stalk the night than demons and monsters... I am one of them." >:D |
| salvagedcircuitry:
Brothers and sisters, we need to band together and unite as one against this inhumanity. |O I just received this in the mail the other day and I have been losing sleep at night. look at this butchery, this mockery, this abomination. We need to unite to fend up against this stain on our trade. No more oscilloscope dumpsters! This should be declared a crime against humanity. Who should we contact for crimes against test & measurement? Surely not PETA. NIST? The International Bureau of Weights and Measures? The Loveland Standards Lab? The lab coats of Beaverton? Our German friends in Munich? It's gone too far. Look at it. The red and black controls are reminiscent of the Tek 540 series. :scared: Realtors need to know that all labs are scared no matter the gear. Hands off our probes! |
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