We found this circuit in an article in Electronics Now magazine from November 1997. The circuit uses two transistors to measure the temperature difference between them when one receives the wind.
This RS flip-flop uses two type 4N26 optical couplers and is characterized by the very high...
This flasher was found in an old Hands On, but uses common components. The optocoupler can be...
This circuit was obtained from a 1969 Electronic Design. Transistors admit modern equivalents. The frequency...