The circuit shown in the figure can be designed with more modern operational amplifiers, as it is from 1994 documentation by National Semiconductor. The power supply must be symmetrical.
This shield circuit is from an American documentation from 1969. The components can be modified...
This is an instrument amplifier that uses two resistive sensors. The circuit is suggested by...
This amplifier provides 20 W of power on each channel, containing separate filters to power a...