This amplifier is from Motorola's 1990 Linear Databook. The circuit can be used with operating amplifiers with the same characteristics and the power supply must be symmetrical.
This simple circuit found in a 1968 EEE was intended for data transmission over the telephone...
This experimental telegraphic communication system can have wires connecting to the handset of...
This circuit, in addition to providing an output that corresponds to the absolute value of the...