This old indicator circuit indicates only when the fuel reaches the sensor level. The integrated circuit is not common today. The circuit was found in documentation from the 1980s.
This circuit triggers a relay when the detected humidity falls below a value. The system can be...
We can also use the 4011 on this CMOS circuit that makes use of a crystal headset. The power...
No information was given on the inductor enrolled in the common core of this circuit two years 80. The...