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Super Moderator
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One for the electricery minded. I have a posh variable bench type and a butane type. Neither of which are hot enough for the fat ignition wires
solder just freezes on contact with the cable. Just not getting enough heat into the copper. The bench jobbie is supposed to be 50w max (though tip is very fine) and the gas one equiviant to 70w (probably is in blow torch mode, but not with the tip). What sort of wattage do proper auto sparks use?

Would this cheapy 40w from Maplin do or will I need to shell out for a 80w?
 

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Premium Member
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19,296 Posts
One for the electricery minded. I have a posh variable bench type and a butane type. Neither of which are hot enough for the fat ignition wires
solder just freezes on contact with the cable. Just not getting enough heat into the copper. The bench jobbie is supposed to be 50w max (though tip is very fine) and the gas one equiviant to 70w (probably is in blow torch mode, but not with the tip). What sort of wattage do proper auto sparks use?

Would this cheapy 40w from Maplin do or will I need to shell out for a 80w?
You just need a much fatter tip for whichever soldering iron you choose to use, you don't need a new iron!.
 

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Keyboard 'worrier'
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I have a cheap soldering iron, its junk! Don't go buying one if all you need is a wider tip, like the flat screwdriver heads.
 

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少し ロバ
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What diameter cable are you trying to solder, 4 - 6mm2?

As above a 50W bench iron with something like a 6mm bent chisel tip should be more than adequate for the job.
 
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