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.
With this circuit it is possible to measure RF signals with a common multimeter. Signals up to 200...
We found this circuit in the 1982 SGS Linear Integrated Circuits manual. The integrated circuit used...
We found this circuit in an old neon lamp application manual. The circuit stores a call. The...