We manufactured a version of the Rife Beam Ray device based on publicly known general specifications. We found several available schematics which in our case proved to be inadequate and sometimes contradictory. In reality, classical LC oscillators of Hartley type used in original Rife Beam Ray clinical devices proved to be somewhat unstable and somewhat sensitive to capacitive coupling with sides of the metallic enclosure. To facilitate manufacturing of this experimental device we modified the existing schematics on several points based on our calculations. We achieved an electrically stable and reliable design.