hi,
my dad found a logitech wingman joystick, it works, got drivers, but, for the ff
it needs power supply, how much volt or so should the adapter be?

If the joystick is like other Logitech appliances that need an external power supply you should find specifications on a label under the joystick, along with additional information.

My Wingman Strike Force 3D takes the same as my MOMO Racing - 24V, 0.75A - which is handy since I lost one of the power supplies.

As Albieg says, check the details under the joystick.

When chosing a replacement power supply, match the voltage and polarity. Make sure it can provide the requested current as a minimum (you can go bigger, it only uses as much as it needs)

it says
5v
and 24v
the 5v adapter wont work, and i dont got a 24v 1, so i'ill buy, 3€...