3do RF cable

Been lookin around locally for a 3do rf cable. My question is, as I've had no luck in finding one, is there one from another system that would work?
If you can find one with a compatible connecton (never seen the back panel of a 3DO; does it have an RCA RF ouput?), then it should work. RF cables/switches really don't do much.
I dont know about that but theres this thing called an rf modulator thatll do the trick .

Back of my 3do only has rca and s video connection..oh yeah and just looked a to the very left theres a brown rf plug in

guess i dont know what model you have