| 摘要 |
PURPOSE:To directly connect an antenna and a tuner without connecting a resistance for insulation and a capacitor between the antenna and the tuner, and to make the fitted receiver immune from a direct wave interference by earthing a horizontal cooling wheel to a charging part through a resistance and the parallel circuit of the capacitor. CONSTITUTION:An antenna 1 is coupled directly to a tuner 2. On a chassis 11, a horizontal cooling wheel 12 of a horizontal output transformer 8 is earthed to the charging part through the parallel circuit of a capacitor C2 and a resistance R1. In such a way, the antenna and the tuner 2 to ground one edge are directly coupled, if a person simultaneously touches a tuner 10 and a horizontal cooling wheel 12 at the time of service, and even then, the current to flow at a human body is fine and an electric shock will not occur. Since the antenna and the tuner are directly connected, the receiver can be made immune from the direct wave interference. |
