DIN EN 60130-9:2011 频率小于3 MHz的连接器.第9部分:收音机和相关声音设备的圆形连接器(IEC 60130-9-2011).德文版 EN 60130-9-2011
Connectors for frequencies below 3 MHz - Part 9: Circular connectors for radio and associated sound equipment (IEC 60130-9:2011); German version EN 60130-9:2011