Using a dual 555 CMOS this very useful circuit on the bench was found in the July 1998 Electronics Now magazine. The circuit is battery powered.
The 78XX series voltage regulator integrated circuits do not support an input voltage greater than...
With a 10 V input this circuit provides a 25 V output. The circuit is from December 1985 Radio...
Found in a 1966 General Electric documentation, this circuit controls an incandescent lamp from an...