Abstract: An electrical power take-off unit which includes an adaptor for insertion into the cigarette lighter socket of a vehicle wherein the adaptor has means for tapping off electrical power from the electrical terminals in the socket so as to be able to supply electrical power to accessories, such as calculators, clocks, computers and the like, carried in the vehicle. The adaptor may be provided with a socket itself for receiving the cigarette lighter. Means can also be provided on the adaptor to directly mount an accessory, such as a digital clock, thereon. The adaptor can also be used even when an accessory is mounted directly on the instrument panel of a vehicle. In such a case, electrical conductors extending from the adaptor to the accessory can be concealed in a decorous manner.

Abstract: A microminiature terminal-adjustable integrated circuit impedance device comprising a substrate, a plurality of impedance elements formed on the substrate with each impedance element having an impedance, a first input terminal, an output terminal, a plurality of electrically permanently alterable contactless switching elements formed on the substrate, each of the switching elements being associated with one of the plurality of impedance elements and having initially a first switching state and being permanently alterable by application of electrical energy to an opposite switching state, an interconnecting means interconnecting the impedance elements and the switching elements in a first circuit configuration between the first input terminal and the output terminal such that the impedance between the first input terminal and the output terminal is of a first value, and a plurality of adjustment terminals each being connected to a different one of the plurality of switching elements for facilitating the applic