This circuit was found in a 1980s documentation for amateur radio. The circuit is for 9 MHz signals and values in parentheses for FI of 455 kHz. The circuit can be adapted to other frequencies.
The integrator in the figure is characterized by low input current and is based on an LM101A. C1...
This circuit was found in an ancient American documentation. The integrated circuit is of the time...
This circuit, from a 1976 documentation, amplifies signals from 100 Hz to 600 kHz with a voltage fan...