This circuit for a digital module was found in the September 1989 Radio Electronics magazine. The source must be symmetrical to the operational amplifier.
This circuit is from old American documentation, but the components used can still be found quite...
April 2017 - Littelfuse's new two-way discrete TVS diodes for protection against ESD up to 30 kV...
This circuit was found in a 1980s documentation. The indicated integrated circuits are uncommon...