ELECTRICAL AND ELECTRONIC APPARATUS, AND PARTS THEREFOR-NAMELY, POTENTIOMETERS, VARIABLE RESISTORS, SWITCHES, CAPACITORS, MICROELECTRONIC CIRCUIT MODULES, ELECTRONIC DIELECTRIC AND INSULATORY CERAMICS, CHIP SEMICONDUCTOR DEVICES, ELECTRICAL REGULATORS, DIODES, RECTIFIERS, THYRISTORS, SOLAR CELLS, PHOTOVOLTAIC DEVICES AND TEMPERATURE COMPENSATED DIODES