What kind of cable does a function generator use?
The function generator has a BNC output. There are a lot of pieces of test equipment that use this connector, including oscopes. You can find many different types of BNC cables. You can get ones with probes, clips, bare wires, or BNC to BNC. You can even get BNC spliters if you want to split your signal to multiple places. What one you get (and the quality, used or new) depends on what you are wanting to use the function generator for.