Are you specifically wanting to record to a camcorder or are you just looking for a way to capture the video? If you want to record to a camcorder, you just need a wire that will connect the output of the N750 to your camcorder. Any camcorder with and RCA video input will work. If you use a regular camcorder, make sure to select NTSC instead of PAL as the video out format from the N750.
If you want a way to capture the video, using a DVR type designed for a scope will be more elegant. There are many options out there, but I would recommend the Sightmark CVR 640 Digital Video Recorder. Sightmark is owned by Pulsar and that device will work well with the N750. It will also come with the specific wire you need to connect the two.