I got this power barrel plug. http://www.digikey.ca/product-detail/en/PP3-002A/CP3-1000-ND/992136
It doesn't have any hole for me to put a wire through. The wire just goes into the hole for approximately 0.5cm. How am I suppose to solder this? I also tried crimping it, but it flatten the tube and causes the centre pin to touch the bottom pin.
Also I found it really hard to solder even on the bottom pin as the solder doesn't really stick to it.
I wonder if anyone could give me some suggestion on how I can attach wires onto this barrel plug.
Answer
Tin both wire ends first. Fill the middle cup with solder, and stuff the (stripped) positive wire in while the solder is hot. Push the negative wire through the hole from inside to outside up to the insulation, and solder the wire to the outside of the contact towards the plug. Crimp the arms around both (insulated) wires. Screw the cap on (and oh yeah, don't forget to put it on the wire before soldering anything).
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