Where Can I Find a Fairchild Channel F System 2 Adapter Box?

[WingNut1]

I recently acquired a channel F system II game system with 4 games, two controllers, and the power adapter; the only thing that is missing is the "Fairchild Adapter Box".  

I would love to plug this sucker in a and see if it works.  if you have an adapter or know where I can find one please let me know.  

Thanks!