IRT

AUDIO AND VIDEO TRANSMITTERS, RECEIVERS, ENCODERS, DECODERS, RECORDERS, AMPLIFIERS; VIDEO KEYERS, VIDEO AND SYNC DETECTORS, LOGO/CAPTION/FIXED MESSAGE GENERATORS, [ VIDEOTAPE AND FILM CUE DETECTORS, ] COLOR BLACK GENERATORS, AUDIO AND VIDEO SWITCHERS, AUDIO OSCILLATORS, VIDEO EQUALIZERS, [ MULTI-FUNCTION MACHINE CONTROL SYSTEMS, COMPRISED OF VIDEO TAPE RECORDERS, FILM PROJECTORS, SLIDE PROJECTORS AND VIDEO CARTRIDGE MACHINES, ] POWER SUPPLIES, MULTI-STATION TALKBACK AND COMMUNICATION SYSTEMS COMPRISED OF MICROPHONE PRE-AMPLIFIER, TALKBACK CONTROL MODULE, RELAY CARD, TALKBACK OUTSIDE BROADCAST AMPLIFIER AND CONTROL PANEL, AND PARTS FOR THE AFORESAID GOODS ALL SOLD ONLY IN THE TELECOMMUNICATIONS FIELD