When the power is cut off, this circuit keeps the flashlight on for a while, allowing it to be located. The circuit is from a Radio Electronics from September 1992.
We found this circuit in the January 1992 issue of Radio Electronics magazine. The circuit...
The division by eight using the 4018 is made as shown here. It isn't necessary to use additional...
May 2017 - Texas Instruments' new OPAx388 operational amplifiers can now be purchased from Mouser...