what is wrong with my sodlering?
Folks, I need a serious advice here please.
I tried to solder brass to copper, and it does not stick. 2mm plate to 1 mm plate-tiger turret.
But just on brass alone np, it sticks well. I use 50/50 solder with built in rosin which is 50%tin 50% lead.
I use 60w electirc solder iron.
I cleaned the copper surface either flux or sand paper, and it just sticks a little and pull it off easy.
My questions is 1),,should i use HCL acid to clean copper or zncls flux(did not work)
2) should I use lead free solder that got 96% tin?//
3) any thoughts please?