This circuit triggers a small water pump when the humidity detected by the sensor is reduced in a flower bed or potted plant. The circuit must use a source according to the driven water pump.
Found in an American documentation from the 1960s, this circuit uses transistors from the time. The...
In the figure we have a typical configuration with operational, which can be different from the...
This limiting circuit or Clipper was found in a 1977 documentation. The circuit uses only passive...