Probably not the right forum but oh well. I have a portable video devise with RCA video out I want to hook to a old small black and white tv that only had the 2 screws for antenna and one of those adapters that make it go to a male coax end. I have about 100 of those 3 wire video RCA video cords the yellow red white can I cut the ends off of one of those cables and just hook it to the 2 screws on the tv antenna in to get video I don't care about the sound I just need video.