A pivotally mounted balance beam is constructed and arranged to nullify its pendular characteristics by appropriately distributing and balancing the moments of the mass both parallel and perpendicular to the beam plane so that whenever the beam reference plane is tilted out of the horizontal any weighing errors resulting from tilt and vibration of the frame of the weigh balance apparatus are minimized. In forming a part of the weigh balance apparatus, a circuit generates an output proportional to load as a function of beam deflection sensed by capacitive sensors and operates through an electromagnetic restoring device including a beam mounted forcer coil to restore the beam to its null position. The coil is connected through electrically conductive knife edges and bearing flats to receive the circuit output and has its position relative to the magnet of the restoring device set so that the restoring device has a linear response to the circuit output. A display receives the circuit output and is compensated for errors caused by changes in the response of the restoring device as a function of its operating temperature to provide a readout representing load.