Hi,
I purchased a jumper wire kit from amazon, (https://www.amazon.com/gp/product/B0728C8QHN/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1), and I'm having some issues with them, just wondering if anyone else has had anything similar happen. The insulation is made of a material which smells like heavy motor oil, and causes a tingling/burning sensation in my fingers. I'm thinking those were cheap China knockoffs and I'm allergic to the insulation chemical.

I've cleaned them in hot water and soap twice, then rinsed with hot water, with a final rinse of warm isopropyl alcohol, but the issue remains. I can't use them, so I need to order a different set (I'm tired of making my own), but I'm gunshy on which ones to order.

Anyone had an issue this?

Can anyone advise me on where to get good quality ones?

Thanks,

GWFAMI

 

Never had that problem but something could of been spilled on them.
But these cheap jumpers are just that I have a 3 cheap set's and one good set
the pins on the good set are solid the cheap ones are rolled and mess up a bread board.

That's been what I've seen better to just use hookup wire.

 

I don't buy ready made jumper wires. I use ordinary insulated 22AWG single strand hookup wire.
Better yet, I find telephone cabling scrap for free that are being thrown away at construction sites. This is usually 24AWG and works just as well.

 

I've always used 24 AWG solid strand wire. I always make my SBB hookups very neat and organized and that means custom jumpers for nearly every connection. I keep the short jumpers for 1 through 3 hole jumps as those come in very handy, but beyond that I just make them as I need them. I've found that the extra time spend making things neat pays huge dividends when it comes time to debug, analyze, modify, and extent the circuit. Not to mention making the circuit a lot more reliable in the first place.

 

I don't buy ready made jumper wires. I use ordinary insulated 22AWG single strand hookup wire.
Better yet, I find telephone cabling scrap for free that are being thrown away at construction sites. This is usually 24AWG and works just as well.

I did not think, they still wired houses for telephone. Or do you jump in your time machine to go back and get that telephone wire?

 

I did not think, they still wired houses for telephone. Or do you jump in your time machine to go back and get that telephone wire?

Yeah, I still have a pile of scrap telephone cable from 20 years back. Maybe you can get them when they are demolishing an old building. I'm sure all the old office buildings must have miles of telephone wire.

 

legoo EL-CP-004 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Wires Ribbon Cables Kit for arduino

The above run about eight bucks on Amazon Prime. They work fine and last a long time. No strange odor or effects on skin in my case. Reminds me that on my wife's next Amazon order I could use another bundle.

Ron

 

I use cat5 cable for about most stuff I do use some jumpers because they came in some kits.
Hook up wire is the way to go. Tho..

 

I did not think, they still wired houses for telephone. Or do you jump in your time machine to go back and get that telephone wire?

Businesses used to use 25 pair cables for the telephones. That gives 50 different colored wires.

I have a friend that gives me chunks of cable pulled out when upgrades are done at his large company. It is nice to have friends like that.

 

Send them back. Claim that they are causing chemical burns to your flesh. Then find a reputable source for your components and test equipment.

 

I did not think, they still wired houses for telephone.

I like to use sprinkler control wire, the 22 gauge wire. A single run of 10 conductor wire (for 9 station control) will have all the wire colors you could want. Makes for very easy tracing of where you ran that wire. And don't EVEN ask me what color "Mauve" is.

 

Never had that problem but something could of been spilled on them.
But these cheap jumpers are just that I have a 3 cheap set's and one good set
the pins on the good set are solid the cheap ones are rolled and mess up a bread board.

That's been what I've seen better to just use hookup wire.

Sometimes I just use tinned copper wire and add my own insulation if I have to - stretching the wire before forming it makes it look neater when done.

Indoor telephone wire is pretty good much of the time.

There is also such thing as zero Ohm resistors that sometimes work for short links.

 

Update: The seller offered an immediate and complete refund, which I accepted, and didn't want the jumpers returned.

Thanks for the good advice.

 

All I can find online is 18 gauge.

I like to use sprinkler control wire, the 22 gauge wire. A single run of 10 conductor wire (for 9 station control) will have all the wire colors you could want. Makes for very easy tracing of where you ran that wire. And don't EVEN ask me what color "Mauve" is.

 

Where are you located?

ak

 

Brother works at a salvage yard. Just told me he can get me some as it's brought in all the time.

 

All I can find online is 18 gauge.

Maybe it's 20 gauge. ([edit] OK, just measured the physical diameter of the wire; it's 0.032" (20 gauge)).

Neighbor had an issue with her sprinklers. When I checked for voltage at the solenoid valve I found 24 volts. However, the valve wasn't opening. So I swapped circuits with one that was working. The one I swapped to failed on that same line. So I started digging up the old wire in preparation for replacement. I found butt splices wrapped in tape directly buried with no further protection. Apparently the copper wires had tarnished significantly enough to allow the voltage to pass but block the current. As I dug I found yet another set of splices buried in the same manor. I decided not to dig up the whole yard and just run a new wire, complete with no spliced joints from the controller to the valve box. I made a steel wedge that I could drive into the ground 7 inches; wiggle it back and forth and open a narrow trench to drop the wire into. To heck with digging up the old wire, I just cut it off at the end of the trench and in the box. That old wire was 20 gauge. What I installed may be 18 gauge. ([edit] Nope - 20 gauge) But the stuff I pulled out of the ground seemed smaller. Some contractor was looking to save money on the install. Evidenced by butt splicing and direct burying the cable. Must have had some scraps he wanted to use up. So the wire I have is not 22 gauge, it's 20 gauge. That's also the stuff pulled out of the ground.

All I can find online is 18 gauge.

I got my wire from Lowe's Home Improvement center.

 

Sounds like insulation was leaking phthalates, typically added to hard rubber to keep it pliable, it's cheaper to use this than to use PVC insulation, most common usage is probably in tyres/tires. Once the phthalates leach out, the material becomes hard brittle, it take a few years though, so I'd guess what you bought had been sitting around for some time.

 

Sounds like that could be it. I've been thinking about taking them into the toxicology lab here at OSU and running a mass spec on them.

Sounds like insulation was leaking phthalates, typically added to hard rubber to keep it pliable, it's cheaper to use this than to use PVC insulation, most common usage is probably in tyres/tires. Once the phthalates leach out, the material becomes hard brittle, it take a few years though, so I'd guess what you bought had been sitting around for some time.

 

Sounds like that could be it. I've been thinking about taking them into the toxicology lab here at OSU and running a mass spec on them.

Well if you have the tools then go for it. The results should prove to be interesting. Since retiring I miss having some cool tools at my disposal. That being about the only thing I miss.

Ron