The circuit below is suggested by National Semiconductor in technical documentation on the LM3909. The circuit is powered by a single battery and has a very low consumption.
We found this circuit in an English publication from 1980. It provides a logical output signal when...
This circuit was found in a 1980 documentation. The triac used is of the TIC226D type which in the...
The integrated circuit used is a dual 555 CMOS. The circuit is from an English documentation and...