NEVER SEEN BEFORE - Amazing Unique Copper Resistors! - Page 1
Forum section: electronics / general

author: PhynixViking
author_rank: Regular Contributor
timestamp: December 15, 2012, 11:35:33 am
content: COPPER RESISTORS?! Yes... You heard me! lolOk, so, they are REALLY kick ass, I posted a video on YouTube about them, here's the link:if you want to skip ahead to just the resistors they are at about 10:00 (10 minutes)And if you know where to get these, tell me? LOLI kinda really like them. Also, any comments ideas, thoughts.... etc... I've NEVER EVER seen these before, and would be surprised if anyone else has, so start up a chat!Unless you know the secret of them or something then anyway do share!!!! lol

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: December 15, 2012, 11:48:45 am
content: The colour looks more like gold plating on the video.Lead wires are usually copper, but tin plated - maybe these just didn't get plated.

author: TerraHertz
author_rank: Super Contributor
timestamp: December 15, 2012, 11:54:34 am
content: Exactly what I was going to say. Both the 'leads are usually tinned copper', plus 'looks a bit like gold plating'.I have seen gold plated axial leads before. It's hard to tell the color in a video.Unless they are very new, copper would have tarnished.

author: Psi
author_rank: Super Contributor
timestamp: December 15, 2012, 12:08:45 pm
content: i've not seen resisters like that before but i have seen TO92 transisters.I dont remember if they were just unplated copper or gold plated thought.

author: nukie
author_rank: Frequent Contributor
timestamp: December 15, 2012, 02:14:52 pm
content: They might be gold plated but kept to minimum, just to keep the oxide away while not too expensive.

author: PhynixViking
author_rank: Regular Contributor
timestamp: December 15, 2012, 09:00:32 pm
content: mikeselectricstuff- Hm! That's a thought. I wonder if they will be harder to solder then. (Haven't used them yet.)TerraHertz- Yea, I notice something about copper on videos (not just mine) seems to always show up as gold. In geology "gold coloring" under a microscope (or 'super' magnifying glass) is normally copper impurities. Funny huh?...Psi- Thinking about it... yea... I've seen quite a few gold plated transistors (leads) mostly in some nicer quality stuff. It would be totally silly of me to gold plate a couple of these resistors wouldn't it? LOLnukie- Nope, they are definitely copper. Just looks gold in the video. But gold plating them might be fun to do, LOL

author: ee851
author_rank: Regular Contributor
timestamp: December 15, 2012, 11:33:37 pm
content: You can dissolve the copper oxide coating on copper by soaking the copper in ketchup for ten minutes. So the resistors would be good when soldered. But not good for breadboarding, I wouldn't think.Never saw copper-leaded resistors in real life.If you have access to a precise scale (tenths of grams), clip a couple leads off a resistor & see if the copper's scrap value exceeds a penny apiece.

author: PhynixViking
author_rank: Regular Contributor
timestamp: December 16, 2012, 02:30:11 am
content: ee851- Hm, well I do a little bit of chemistry too, so I have access to some acids that would work better then ketchup (but of course thanks for the advice! ^_^ )I wouldn't want to scrap them for the copper I kinda like them, lol and I go through so much copper wire and metals from scrapping computers (when they aren't worth being fixed or are too old to sell)I might just clip one and weigh the copper just for "fun", when I do I'll post a comment here (or message you) with how much it is.