Abstract: A filter, for use with a delay compensating circuit in a delay line filter, formed from co-located capacitors. The capacitors may be formed as traces disposed on a circuit card and co-located to provide capacitive coupling to each other and ground. Proximity coupling wires are connected at one end to capacitive traces, and at the other end hang in mid-air above the next adjacent capacitive trace. The distance between each proximity coupling wire and the neighboring capacitive trace can be varied to control the capacitance coupling between neighboring capacitive traces. The filter is thus tuned by controlling the distances between the proximity coupling wires, and by squeezing or stretching the inductors. The shunt coils control the frequency of the filter, while the series of capacitive traces control the bandwidth.

Abstract: A switching device providing highly-reliable, frictionless, adjustment-free operation is described. Comprised of a comparatively small number of moving parts, the various aspects of the invention offer compact, cost-effective, reliable alternatives to their complex electromagnetic and costly solid-state counterparts. The main parts of the invention rely upon the principles of magnetic attraction and repulsion for the switching of a plurality of electrical contacts contained within the switching device. The flexibility inherent in the design of the invention permits the switching device to be configured in a variety of aspects, including the failsafe and latching designs described herein.

Abstract: An electromagnetic switching device for controlling the flow of electrical current between a plurality of pins. The switching device includes a base, an input pin, first and second output pins, a reed, an actuator, a magnetic field generator, and generator pins. The reed and actuators are movable between a first position which electrically couples the first output pin and the input pin, and a second position which electrically couples the second output pin and the input pin. Dielectric compatible plastic material with enhanced shielding characteristics is located in apertures in the base to structurally retain the pins therein. The actuator further includes a center body portion, an arm integrally molded with the center body portion extending generally laterally outward therefrom, and a finger depending downwardly from the arm. The finger is structurally coupled to the movable reed to move the reed between its first and second positions.