It serves as a reference, since today we can have simpler and more compact solutions. This circuit is from an Electronics Experimenter Handbook from 1992. The integrated circuits are from that time.
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...