We found this circuit in an old documentation, but the components used offer no difficulty in obtaining it. The CMOS integrated circuits are powered by a 6V supply.
This interesting automotive alarm was found in an English publication from the 1980s. The circuit...
This modem circuit using a 4046 PLL was found in the October 1994 issue of Electronics Now. The...
This traditional timer setting can provide time intervals up to a few tens of minutes. The...