Abstract: A magnetostatic wave device which has broad application in the signal processing arena is disclosed herein. Basically, the magnetostatic wave device includes a layer of magnetized magnetic medium having a surface which includes a prespecified area to support the propagation of magnetostatic waves. A generator element is disposed at one end of the propagation area and is operative to carry an electromagnetic signal to generate magnetostatic waves supported by the propagation area. A pattern of conductive material having a plurality of conductive paths commonly coupled together at both ends is disposed in juxtaposition with the propagation area of the magnetic medium surface. In one embodiment, the conductive pattern includes a variable impedance coupled to each of a desired number of the conductive paths thereof to vary the impedance of the path. Each variable impedance is adjustable controlled in accordance with an applied governing signal.

Abstract: A circuit breaker including a flux transfer trip mechanism and a solid state passive overcurrent sensing device having a temperature-dependent switching resistor of resistance material such as vanadium dioxide or lanthanum cobalt oxide.

Abstract: An improved composition of VO.sub.2 current inrush limiting ceramics for incandescent lamps using a 0.003-0.06 weight percent MoO.sub.3 addition. This addition modifies the resistance-temperature relationship to provide a more gradual transition and also to provide a resistance which varies less at temperatures below the transition temperature. The more gradual change is desirable as it reduces the tendency for a delayed current overshoot and also reduces the tendency for the current to be funnelled through a relatively small portion of the thermistor. The more nearly constant low temperature resistance provides good current inrush limiting in a wider range of ambient temperatures.

Abstract: An arrangement to eliminate the initial current overshoot which normally occurs when a tungsten incandescent lamp is connected to a power source. The arrangement uses a negative temperature coefficient thermistor having a certain predetermined mass. It has been determined that a practical limiter to eliminate current overshoot can be made only when the mass of the limiter is within a relatively narrow range. The hot and cold resistance of the limiter must also be within prescribed ranges to give a limiter which is not only effective in eliminating the current overshoot, but also efficient in steady state operation such that the limiter dissipates less than 1% of the total power.

Abstract: The surface of a substrate is passivated by the introduction of a thin la of (Hg,Cd)Te, of increased Cd content, on the substrate surface before the growth of the desired composition of (Hg,Cd)Te.