Found this in a box of stuff I was given. Looks brand new. It's obviously a RF Modulator of some type but I can't tell exactly what it's for or designed for. One end has a number 251083-03 and the other end has a switch for CH0 and CH1. The DIN plug is 5 pin.
I Googled the number and found some reference on http://www.yesterdaystechnology.com/ which confirms it's a RF Modulator but nothing else. Photos are here. http://koken.advancedimaging.com.au/index.php?/albums/f54fbe61f7978530b1dbd08eca0bc80f/content/e3ceacd632dcac82255081e611941fc0/ Thank you!! Kevin Parker P: 0418 815 527