This has probably been asked many times before, but I'm not sure if I understood it, so:
I own a Famicom since quite a while and I have toyed with the idea of getting a controller adapter, as I don't want to use the Famicom's controllers too much. This is because they are
a) a bit uncomfortable
b) pretty used, which is why their buttons are not working so well
c) hard to replace in case they break, as I can't seem to find a player 1 controller anywhere.
So, since I have zero technical knowledge and soldering skills, it would be best for me to buy an adapter like this from someone. But I realize that finding someone that sells them is not so easy, so I sought out for some information.
A friend of mine knows how to solder and has the right equipment, which leaves the technical stuff. From what I gathered, one could make such an adapter with a Famicom/Neo-Geo extension cable and a NES Four Score, which is the way I plan to have it done. How would one go about soldering the wires in this case? Would the easiest solution allow for two player support or not? Is it feasible to solder the wires in a way to make four players work? I don't need that, mind you, but if it wouldn't be much more trouble it would certainly be the best way to do it.
It would be nice if someone could help me out on this, and please try to explain it as simple as possible.
Thank you very much in advance.
Honestly, have you considered opening up your P1 controller and just cleaning it with some rubbing alcohol? If the buttons don't always work, it's probably just dirty. Also, if you need new buttons, you can source those from a P2 controller.