This circuit is from the National Semiconductor's Linear Applications Handbook of 1994. The circuit can be implemented with equivalent operational. The detected voltage is given by the diode.
The more sensitive the instrument used the better the sensitivity of the indicated meter. We...
Texas Instruments Type D flipflops N74LVC1G79 and SN74LVC1G179-Q1 for operation from 1.65 to 5.5V...
The sensors of this liquid alarm are formed by two pieces of wire with the ends peeled off. The...