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Forum Index : Microcontroller and PC projects : Fake Copper Wire
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CaptainBoing Guru  Joined: 07/09/2016 Location: United KingdomPosts: 2074 |
I agree and years ago I noticed how clipping the leads of resistors/capacitors/trannies etc. often the cuttings would stick to the side-cutters. Steel has been used on component leads for decades. h |
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| CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 2074 |
and cheaper than "penny washers". I always consider drilling "brown money" when I need a big washer... there are some M8 bolts and 12p worth of tuppenies holding the drum in the tumble dryer from when I repaired it after the rivets holding the spindle pulled through the sheet steel.  My wife recently stiched together a Xmas tree playmat and the decorations on the tree were intended to be held on with velcro... that was a bit ugly so I suggested using washers stiched into the tree and then Nd magnets stitched into the back of the decorations (you can't see either, they are under the fabric). Great... except the chinesium M8 washers I got from the shed have almost no attraction. In the end we went through a pile of pennies and sorted out enough steel ones to use instead. Job done. Edited 2024-11-15 22:08 by CaptainBoing |
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SimpleSafeName Guru Joined: 28/07/2019 Location: United StatesPosts: 319 |
Yup. The way that I see it is now the steel is intentionally hidden rather than a necessary part of the conductor. For instance, the old house wire from the "earlier" twenties was nickel-plated copper to make soldering the joints together easier. And nobody likes to be deceived. |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3150 |
My clip-on leads are magnetic. Also, a "power only" .2M USB C cable which came with I don't know what. Other USB-C and -micro cables are fine (or are at least not magnetic). I would never have thought to test them for magnetism. PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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Marcel27 Regular Member  Joined: 13/08/2024 Location: NetherlandsPosts: 53 |
I stopped buying cheap "Banggood" stuff from China, 10 years ago. I love to pay a few € more for quality stuff. It gives me more safety, pleasure and less stress. The electronic "copper" stuff that I own with a strong China smell is not magnetic, a relief. I bought a Volume/Selector chip for repair a Yamaha device. It worked for 1 month and after that it kept the machine dead silent.  Edited 2024-11-16 18:28 by Marcel27 If you use AI, you lose your mind. |
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| grumpyoldgeek Newbie  Joined: 30/07/2018 Location: United StatesPosts: 31 |
Back around 1978, I applied for a technician's job at a place that made cyclotrons. At the interview the production manager tossed me a little plastic bag full of components. Through-hole resistors, capacitors, diodes. Through-hole because 1978. He asked me to tell him everything I could about each of the components. I identified everything by function, value, precision and voltage rating as best I could. I paused and for some reason told him that the leads of the disk capacitor were probably made of tinned steel and not copper. His mouth dropped open. He said that they used that part to build a magnetometer and it took them a month to find the component with ferrous metal in it that was screwing up readings. I didn't take the job, but the interview and tour of the plant were fun. |
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