You might get lucky, check at the library for the Sam's Photofact, copy of the schematics. Most of the time you will have to replace all of the old paper capactors, most important is the .0068mf 1600V on the output of the transformer on the OZ4. The power lead wire normally goes to a plate mounted on the inside of the case and then to the power switch. the antenna goes to a resessed hole someware in the case.
