Abstract: In a multidirectional input device, a control shaft and an operating member are spline-connected so that when the control shaft is turned in the tilted state, the operating member spline-connected to the control shaft also turns even if there is friction between the bottom portion thereof and a bottom plate due to elastic pressing by an urging member. The operating member turns in a rolling manner without slipping on the bottom plate, Thereby improving the manipulation feeling of the control shaft.

Abstract: In a multidirectional input device, a surface of a bottom plate facing the bottom of an operating member is provided with a projection having a taper portion that gradually rises from the outer periphery toward the center, wherein the operating member is tilted with the tilting operation of a control shaft and contacts the projection to regulate the motion of the operating member. Therefore, the operating member does not slip, and a tactile feel is not produced in the tilting operation.

Abstract: A slide rheostat type linear characteristic sensor includes a detecting resistor R2 printed on a substrate 8. A brush 7 slides on the detecting resistor R2. Clamping resistors R1 and R3 are printed, simultaneously with the detecting resistor, on the substrate 8 at positions separate from a sliding area of the brush 7. The clamping resistors R1 and R3 are made of the same material as the detecting resistor R2.

Abstract: A potentiometer for the redundant measurement of the angle of rotation of a shaft compared with a fixed member has two resistance paths located concentrically with each other on a fixed disk. Two collector paths having the shape of circular rings are located concentrically with each other on a disk situated parallel to the fixed disk and rotating together with the shaft. Two slide contacts connected with the collector paths are in contact with the two resistance paths. Two redundant measured values are tapped at two terminal contacts fastened to the fixed disk that are in contact with the collector paths through two slide contacts.

Abstract: An analog joystick controller includes a handle shaft engageable with two yokes rotatably movable respectively about two perpendicular axes in response to tilting of the handle shaft. The yokes are respectively coupled to the wipers of two potentiometers, the resistance portions of which are fixedly connected to adjusting means manually movable for zero adjustments. Each yoke carries a pair of pivoting levers biased together into engagement with the yoke for movement therewith. Each pair of levers is associated with a control block which is manually movable between the levers to permit only one of them to move when the handle is moved from a center or home position, depending upon the direction of movement of the handle, for biasing the handle to its center position.

Abstract: A tuning device comprises a preset mechanism capable of producing a tuning voltage to be applied to an electronic tuning circuit by moving any push button.

Abstract: Attenuation equalizer in the circuit of an adjustable four-terminal network for correcting the frequency-related attenuation curve of cables including a bridged T circuit containing ohmic resistances and having two fixed ohmic series resistance, preferably of equal resistance value, bridged by a bridging impedance, the bridging impedance being a series-resonant circuit having an inductance, a condenser and a variable parallel resistance wherein the shunt impedance is a parallel-resonant circuit having an inductance, a condenser and a variable series resistance, the latter being adjustable by means of a common traversing device.