This filter was found in an old publication from 1977. The circuit must use a simple two-voltage source and the components can be changed for operation at other frequencies.
Suggested by General Electric in a 1968 documentation this integrated amplifier uses a component of...
This circuit retriggers when a new pulse arrives. It does this by discharging the capacitor. The...
This circuit triggers a buzzer or other warning device when the light falling on the sensor is cut...