Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, RF amplifiers for terrestrial, CATV and satellite reception, multiswitches for satellite and terrestrial reception, taps and splitters for a frequency range from 5 to 3.000 MHz, TV/satellite sockets, accessories for CATV/SAT and terrestrial networks, namely, connectors, adapters, filters, switches, indoor or outdoor antennas for terrestrial, CATV or satellite recepti...