Abstract: A junction box for coupling alligator test clips to a modular telephone line. The device includes a housing having a plurality of contacts to which each alligator clip of a telephone testing apparatus may be connected. A female modular telephone receptacle is provided having a plurality of color-coded wires electrically coupled to the respective contacts. The contacts are each labeled in accordance with conventional telephone wire colors. The telephone testing apparatus may be easily coupled to a male modular telephone connector of the telephone line to be tested. The device eliminates the conventional practices of moving furniture to access telephone outlets, and disassembling telephones for access to internal contacts.

Abstract: A ceramic bodied sensor having helical metallized electrodes for measuring the capacitance of an oil-water-gas or oil-water mixture flowing through a central bore of the sensor is disclosed. The sensor generally is a hollow cylinder with an inner ceramic layer which is very thin, a thicker outer ceramic layer which forms a strong structural unit, and a pair of isolated metallized electrodes which are generally approximately located between the inner and outer ceramic layers. The inner ceramic layer, outer ceramic layer and metallized electrodes form a dense monolithic ceramic tube. The electrode plates are preferably identical in size and shape and are isolated from one another electrically so that a condenser is formed by the separated plates. The inner ceramic layer is preferably very thin to minimize its capacitance value in comparison to the capacitance value of the water-oil-gas or oil-water mixture flowing through the central bore of the sensor.