Hi, I have two original manuals. One is the instruction book for the MX-1258/U Tube Socket Adapter Kit (NAVSHIPS 91798) and the other is Test Data For Electron Tube Test Sets TV-7, A,B,C,D/U (TB 11-6625-274-12/1, January 1962). They are in pretty good condition. I am in need of a manual for my Hickok 800 tube tester. Any trades for either? Thanks, Bill, K3PGB