SCIENTIFIC, ELECTRICAL, ELECTRONIC, AND PHOTOGRAPHIC APPARATUS AND INSTRUMENTS, COMPRISING - ACCELEROMETER KITS COMPRISING ACCELEROMETERS, POWER SUPPLIES, CABLES AND MOUNTING APPARATUS THEREFOR, AMPLIFIERS, ANALOG-TO-DIGITAL CONVERTERS, ATTENUATORS, AUTOMATED TESTERS, AUTOMATIC VIDEO CORRECTORS, BATTERIES, BATTERY POWER PACKS, CABLES, CABLE CONNECTORS, CABLE TESTERS, CAMERAS, CAPACITORS, CATHODE-RAY TUBES, CHARGE-COUPLED DEVICES (CCDS), CIRCUIT BOARDS, COAXIAL CABLES, COAXIAL TRANSMISSION LINE TERMINATIONS, COMMUNICATION SIGNAL ANALYZERS, COMPUTERS, COMPUTER PROGRAMS, NAMELY OPERATING SYSTEM, APPLICATION AND UTILITY PROGRAMS FOR USE WITH ELECTRONIC TEST AND MEASUREMENT, COMMUNICATIONS AND COMPUTER GRAPHICS EQUIPMENT AND PERSONAL COMPUTERS, COMPUTER TERMINALS, COMPUTER WORKSTATIONS, CONNECTOR ADAPTERS, CRT DISPLAY CONTROLLERS, CRT DISPLAYS, CRT FILTERS, DATA COMMUNICATION TESTERS, DELAY LINES, DIGITAL LOGIC ANALYZERS, DIGITAL MULTIMETERS, DIGITAL SIGNAL ANALYZERS, DIGITAL TESTERS, DIGITAL-TO-ANALOG CONVERTERS, DIGITAL WORD GENERATORS, DIGITAL WORD RECOGNIZERS, DIGITIZING SIGNAL ANALYZERS, DISTORTION ANALYZERS, ELECTRICAL EQUIPMENT CARTS AND STANDS, ELECTRICAL SIGNAL CONVERTERS, ELECTRICAL SIGNAL COUNTERS AND TIMERS, ELECTRICAL SIGNAL DETECTORS, ELECTRICAL SIGNAL DIGITIZERS, ELECTRICAL SIGNAL GENERATORS, ELECTRICAL SIGNAL MIXERS, ELECTRICAL SIGNAL MULTIPLEXERS, ELECTRICAL SIGNAL PROBES, ELECTRICAL SIGNAL PROCESSORS, ELECTRICAL SIGNAL SAMPLERS, ELECTRICAL SIGNAL SCANNERS, ELECTRICAL SIGNAL SWITCHERS, ELECTRICAL SIGNAL SYNCHRONIZERS, ELECTROPHOTOGRAPHIC PAPER, ELECTRON TUBES, GRAPHIC TABLETS, GROUND (EARTH) ISOLATORS AND ISOLATION MONITORS, HYBRID CIRCUITS, INDUCTORS, INSTRUMENT CALIBRATORS, INSTRUMENT CARRIERS, INSTRUMENT CASES AND COVERS FOR ELECTRONIC INSTRUMENTS, INSTRUMENT MOUNTS, INSTRUMENT SYSTEM CONTROLLERS, INTEGRATED CIRCUITS, KEYBOARDS FOR TERMINALS, LASER DIODE, DRIVERS/CONTROLLERS, LASER DIODE MODULES, LIQUID CRYSTAL DISPLAYS, LIQUID CRYSTAL SHUTTERS, LIQUID CRYSTAL LIGHT MODULATORS, MAGNETIC RECORDING MEDIA, MAINFRAMES FOR PLUG-IN MODULES, MICROCOMPUTER (MICROPROCESSOR) DEVELOPMENT LABS, MICROPROCESSOR EMULATORS, MICROWAVE PROBE STATIONS, OPTO-ELECTRICAL SIGNAL CONVERTERS, OPTO-ELECTRICAL SIGNAL GENERATORS, OSCILLOSCOPES, PHOTOGRAPHIC FILM, PHOTOMETER/RADIOMETERS, PLOTTERS, PLUG-IN MODULES, POWER CORDS, POWER SUPPLIES, PRINTERS, RANDOM NOISE MEASUREMENT SETS, RELAYS, RESISTORS, SURFACE ACOUSTIC WAVE DEVICES, SCAN CONVERTERS, SEMICONDUCTOR DEVICES, SEMICONDUCTOR CURVE TRACERS, SEMICONDUCTOR MEMORY MODULES, SEMICONDUCTOR TESTERS AND MOUNTING FIXTURES FOR SUCH TESTERS, SPECTRUM ANALYZERS, SPECTRUM MONITORS, STEREOSCOPIC DISPLAYS, TELEVISION DEMODULATORS, TELEVISION GENERATORS, TELEVISION SIDEBAND ANALYZERS, TEST LEADS, TIME BASES, TIME-DOMAIN REFLECTOMETERS, TRANSFORMERS, TRANSISTORS, VECTORSCOPES, VIDEO CAMERAS, VIDEO FRAME STORES, VIDEO DISPLAY MONITORS, VIDEO IMAGE COPIERS, VIDEO SIGNAL MEASUREMENT SETS, VIEWING HOODS FOR CATHODE RAY TUBES, WAVEFORM MONITORS, WAVEGUIDE MIXERS AND COMPONENTS THEREOF