The cable that goes between the DEC VT1200 (looks like an N connector) and their monochrome video monitors like a vt262 and a DEC VSXXX-AA mouse. I've got a working VT1200 minus mouse and video cable. I was going to cobble one up with some RG6 and a BNC connector and an N connector (if that's really an N connector) but I'd really rather find the right cable and spend more time enjoying the toy rather than fixing it.