Does anyone know what the socket size is for that terminal adapter cable that comes with the Unitrack sets? I only have one of these and I just got a DCC system (right now it's a very small test track). What I'd like to do is fashion for temporary use a short cable that will "plug" into the adapter cable in much the same way the adapter cable plugs into the Kato power pack. That way I won't have to cut the end off that cable in order to be able to wire it into the DCC power supply.