This circuit supplies 5 V from two AA batteries. The output current is 4 mA, resulting in an 11 mA input current from the batteries. The circuit is from an old EDN.
Found in a 1965 Electronic Design, this circuit limits surges in a load when power is applied. The...
This instrumentation circuit was found in the September 1989 issue of Radio Electronics magazine....
In the original publication of the 90s a 556 consisting of a double 555 is suggested. The circuit...