| Electronics > Beginners |
| My double ended alligator clips are 0.5-1.5Ohm |
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| lordvader88:
I bought 20 or so wires w/ alligator clips on both ends and they all pretty much measure 0.5-1.5 ohm. They are about 20-22 gauge stranded copper wire I think. They are not soldered. So that must be just weak connections right....and therefore I should solder the clips....rather than post about it. But it's annoying when the com probe is 100s of mV below PCB gnd. |
| tsman:
Your resistance measurement is slightly high as I expect it to be under 1 ohm but cheapo croc clip leads are just like that. I expect the conductor in the lead is actually thinner than 20AWG and together with not great crimping is the cause for it. Soldering the crimp on a croc clip lead is not a great idea though. The solder will wick up the wire and cause a weak point there. As you'll most likely be moving the leads around a lot, you'll end up with a break. Old thread about them. |
| TERRA Operative:
I used to use those cheap alligator clips, but they are crap. The conductor in the wire is just folded back on itself then the alligator clip is squished down. Makes a terrible connection. Now I just get my own alligator clips (I found some good quality gold plated ones here in Japan) and I make my own leads with silicon wire from ebay. |
| viperidae:
The wire could be steel or aluminium |
| ArthurDent:
TERRA Operative is correct. I bought some of those cheap leads and found that a couple of the leads went open circuit and the rest read high for resistance. If I pulled on the two ends, the wire came right out because it was poorly crimped with the wire folded back over the insulation. I also found that the plastic insulating boot was so stiff that it was almost impossible to open the clips. I just tossed those jumpers out and bought some grabber hook type jumpers that had soldered ends. |
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