Abstract: A lead wire connecting device for coaxial cable connector which a core wire and a shield wire are allowed respectively to connect and contact simply and easily to each contact terminal of a hot side pin and a shield side spring of the connector, and which is characterized by that a contacting groove which a core wire is to be inserted is formed at the hot side pin terminal, the contacting spikes which are to be contacted to a shield wire are formed a the tip of the shield side spring terminals, a pinching piece for bending and pressing the core wire to the contacting terminal is formed to the interior of a cover, and a pressing piece for pressing the coaxial cable to the contacting spikes is also formed on a cover, so that the positive contact between cable and an appliance can be obtained without any cumbersome stripping and soldering works as usual.

Abstract: A BALUN trans and feeder line connecting device for the antenna matching adapter, which is connected to an F-connector for VHF mounted on the antenna terminal strip of a television set is disclosed.

Abstract: A plug for coaxial cable of the type used for wire broadcasting transmission or multiplex communication system comprising a shielding cap. The shielding cap molded from a conducting material is connected to the cable without stripping the outer insulating material because several sharp-edged sector-shaped projections formed at the end of the shield cap penetrate into the outer insulation of the cable and their tips stick in the shielding net of the cable. A socket or other contact elements of other electrical circuits may or may not have a thread for engaging the assembled plug since the shielding cap itself is made of an elastic material which allows sliding fit instead of thread engagement.