This circuit, from a component manual, also applies to other components in the same family. The font does not have to be symmetrical, and the characteristics are given next to the diagram.
This '80s circuit drives an infrared LED, producing a modulated signal. Modern higher power LEDs...
We found this circuit in the February 1987 issue of Radio Electronics magazine. It is based on an...
This simple 1 transistor circuit was found in an American documentation from the 60's. The...