What am i doing wrong with soldering?
So im still pretty new to electronics and obviously my projects involve soldering. But here's my problem, i go through tips too often. i dont use my soldering iron too much but my tips still oxidize all the time. I tin the tips when i use them but they still get oxidized. Although my iron is from radioshack, (i know not a quality iron) could that be the problem? or that my solder is lead-free? If anyone could tell me why my tips still get oxidized all the time that would be great, thanks in advance.