This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms and excites a load of 16 ohms. The integrated circuit of the time is the PA237.
This configuration of the 1980s uses NAND A-type CMOS ports, which have a linear response with...
This circuit, which appears elsewhere in this section, is from a 1969 Electronic Experimenter...
This circuit is from a manual of FETs of 1977. The FET can be the BF245 or MPF102 and the relay is of...