COMPONENTS AND APPARATUS-NAMELY, OSCILLATORS, AMPLIFIERS AND PREAMPLIFIERS, DETECTORS COMPRISING PHASE, HETERODYNE AND NULL TYPES, VARIABLE AUTOTRANSFORMERS, VOLTAGE REGULATORS, ELECTRIC FILTERS, COAXIAL TRANSMISSION LINES AND STRUCTURAL PARTS THEREFOR, ELECTRONIC IMPULSE MARKER GENERATORS, REFERENCE ELECTRICAL STORAGE UNITS, TRANSISTOR AND ELECTRICAL COMPONENT MOUNTS AND PARTS THEREOF, ATTENUATORS, REGULATED AND MODULATED POWER SUPPLIES FOR ELECTRICAL INSTRUMENTS, CAPACITORS, INDUCTORS AND RESISTORS, DECADE CAPACITOR, RESISTOR, INDUCTANCE, ATTENUATOR AND VOLTAGE-DIVIDER UNITS, COAXIAL CAPACITANCES OF KNOWN VALUES, TRANSMISSION LINE CONNECTORS, ADAPTERS AND COUPLERS AND TUNERS THEREFOR, CONNECTORS, PATCH CORDS, COUPLERS, MIXERS, BINDING POSTS, PLUGS, AND FOR ELECTRONIC TEST AND MEASURING EQUIPMENT AND COMPUTER-CONTROLLED ELECTRONIC TEST EQUIPMENT-NAMELY, FREQUENCY GENERATORS AND SYNTHESIZERS, NETWORK ANALYZERS, PRECISION BRIDGES, IMMITTANCE METERS, STANDING WAVE METERS, DIGITAL IMPEDANCE METERS, LINEAR CIRCUIT TESTERS, STROBOSCOPES, SYNTHESIZER NETWORK ANALYZERS, SAMPLING AND GRAPHIC RECORDERS, DIGITAL CAPACITANCE METER, IMPEDANCE AND ANALOG COMPARATOR, AUTOMATIC RESISTANCE-INDUCTANCE-CAPACITANCE BRIDGES, SOUND LEVEL METERS, VIBRATION ANALYZING AND RECORDING INSTRUMENTS, COMPUTER PROGRAMS RECORDED ON TAPES AND DISCS FOR USE IN LOGIC CIRCUIT TESTING, DIGITAL ANALOG TESTERS AND TROUBLE SHOOTING CIRCUITS AND APPARATUS FOR TESTING AND ANALYZING CIRCUIT BOARDS AND NETWORKS

COMPUTER PROGRAMMING, TESTING AND ANALYZING SERVICES