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 common transistor-based circuit provides power for 20 mA common white LEDs from a single 1.5...
This circuit for old cars with platinum ignition was found in Radio Electronics magazine from...
The receiver shown above was sent in by contributing reader Adriano Muniz Moura and is used for...