This circuit is suggested by National Semiconductor in its Linear Applications Handbook. The LM3909 integrated circuit consists of a very low consumption oscillator with a power supply of 1.2 V.
We found this circuit in an English documentation from 1995. With it it is possible to measure a...
The circuit shown below was obtained from an Italian magazine Sperimentare from 1977. All...
The integrated circuit used in this circuit is not common today, because it is a configuration obtained in...