This filter, found in an old manual, has characteristics of reduced overvoltage given by the graph next to the diagram. Formulas for component calculations are given next to the diagram.
We present a circuit formed by six voltage comparators. Each comparator will analyze the voltage...
This circuit can generate time base signals from 5 to 1500 Hz. We find it in a documentation about old neon...
In this circuit the CA3140, an operational amplifier, is used as a comparator with the zener diode...