Abstract: The invention relates to a low-pass filter for limiting the frequency band of a luminance signal and for delaying said luminance signal, in particular intended for use in the recording channel of a video recording apparatus before the FM modulator. The luminance signal components above a cut-off frequency are attenuated by means of a ceramic filter (11, 31) which is connected to a point of constant potential (earth) and the luminance signal is delayed by means of a delay line (7, 35) arranged in the signal path.

Abstract: A feed-through connector which is mounted on an RF-shielding housing and which serves for the input and/or output of an RF signal. The feed-through connector comprises a grounded sleeve (122) and a signal conductor (112a) which is arranged in the sleeve. The conductor comprises a connection pin (112) which is accommodated in the sleeve so as to be insulated therefrom. The feed-through connector is divided into a connection base (101) which accommodates the conductor (112a) and which is secured to the housing (102), and a contact portion (103). In accordance with the desired connection standard, the contact portion (103) is provided with a connection pin (112) and a grounded sleeve (122) which is electrically insulated from the connection pin. The contact portion (103) electrically contacts the connection base (101).