[Solved] Affordable, Reliable Soldering Iron Recommendations: Long-Use, Circuit Boards, Connectors, Cables

Jarek1104 wrote:

But he explains that not only thin cables because, for example, connectors on the motherboard and to remove some of them to put new ones, you have to heat for a long time
And I've already smoked from many transformers because it was melting from the inside and most often the soldering iron had to be thrown away

A preheater is used in conjunction with a hot air soldering iron to disassemble multi-contact components that are distributed over a relatively large area (e.g. multiple USB, COM, LPT or PCI connectors).
The tin currently used in mainboards has a melting point of approx. 230 °C and soldering it with a tinol soldering iron with a melting point of 170 °C is an ordeal and that's why you have already broken so many "transformers";
the first reason is this high melting point and the second reason is the large surface area to heat up with this soldering iron.

If only one connector is soldered - the motherboard can be pre-heated even with an electric heat gun.
However, this "technology" should initially be tried on completely damaged boards, after some time you can get the hang of it, and eventually perfect it, especially in desoldering such connectors without damaging them and the motherboard.

To: Jarek1104

Man, instead of struggling on the forum, read with understanding what your colleague Jarzabek666 linked to you in post No. 18.

Then you will learn that if something is for everything, it is for ... nothing.
There is no one universal soldering iron for everything and you want to solder cables, motherboards and maybe even BGA chips with one piece of equipment???

I apologize to the moderators for the sarcasm, but this forum is getting more and more hands down.

I bought a resistance one from Allegro for about PLN 80 and it works fine, thanks for your help