This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a carrier. The used components are not common today.
The gain of the Operational Amplifier in the figure is given by the ratio between R1 and R2. In...
This conventional window comparator configuration was found in an old documentation. It is valid...
This circuit uses a Norton operational amplifier to generate 1 kHz pulses with a 1 to 60...