9 SIGNAL GENERATORS, MODULATION METERS, CENTRALIZED SIGNAL GENERATORS, AUDIO OSCILLATORS, DISTORTION METERS, WOW FLUTTER METERS, WAVE ANALYZERS, VIDEO TAPE RECORDER, JITTER METERS, PHASE METERS, Q METERS, MINI-CURRENT OHMMETERS, NOISE METERS, VOLTMETERS, OSCILLOSCOPES, DIGITAL MULTIMETERS, SPECTRUM ANALYZERS, LOGIC ANALYZERS AND DIGITAL LCR METERS FOR MEASURING INDUCTANCE, ELECTROSTATIC CAPACITANCE AND RESISTANCE; AUTOMATIC MEASURING SYSTEMS, NAMELY, ANY ONE OR MORE OF THE ABOVE-MENTIONED MEASURING UNITS SOLD IN COMBINATION