Abstract: The invention relates to a method of manufacturing a hermetically sealed component housing having a tray-like upper portion and a tray-like lower portion of an insulating material, which portions are hermetically sealed to each other, the lead-in conductors to the component being accommodated in the junction between the upper and lower portion of the housing. The lead-in conductors to the component are so formed that they partially extend in a longitudinal direction between the connecting surfaces of the upper portion and the lower portion of the housing, and the housing portions with the intermediate lead-in conductors are interconnected by heating in a high-frequency field the individual lead-in conductors, which are interconnected to form an annular conductor, until the housing portions are interconnected.

Abstract: A fiber optic switch producing optical connections with very low light losses. The switch has constant mechanical and optical properties over long periods of operation. Adjusting elements act on the end of at least one light conductor to move the end face of the light conductor in the axial and transverse directions. The end face can then be moved opposite to and into contact with the end face of another light conductor.

Abstract: In an electronic clock circuit having both a stepper motor and a PXE (piezoelectric oxide) alarm element, the stepper motor and PXE element are connected in parallel and appropriate motor and PXE drive signals are provided on the same line. With this circuit configuration, an inductance and a transistor are eliminated from the prior art circuit, thus resulting in a smaller and less expensive device.