I am in the process of restoring a Scott SLRM. I do not recognize the antenna jack on the back of the chassis. It appears to be proprietary. The instruction manual says that the mating plug came with the radio, but mine is missing. I am lucky in that I have the original power inlet female type plug. Do any of you Scott experts know what kind of plug I should try to find to mate with the original connector? I would really like to leave the original socket, but, if I cannot get a proper mating plug, I may change it to an SO239, which is pretty standard these days.