@mbw Can anyone provide some advice on soldering copper wire to brass. I have an old Western Hobby Craft Trolley. The ground wire has separated from the brass motor mount. I already understand my soldering iron will not provide enough heat. I do have a micro torch, but am hesitant to bring in the big gun for fear of melting electrical connections close by. Thanks in advance on how to approach this problem. I was thinking I could form a solder puddle on the brass and then solder the wire to the puddle.
I am comfortable with soldering copper plumbing, but this is far more delicate work.