Using a MAX644 this circuit was found in the April 1989 issue of Radio Electronics magazine. The circuit is for a 5 V voltage and 50 mA current output.
Found in the April 1995 issue of Electronics Now magazine, this circuit provides an output voltage...
This circuit uses a high brightness LED to simulate a LASER. We found it in a 1991s PE Hobbyst...
This tuned circuit was found in a 1966 Electronic Circuit Handbook. The transistor can be any...