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 circuit with 1% regulation aims at replacing mercury cells. We found it in a 1967...
This transistor tester configuration can be found on this website with many variations. The...
This high current control circuit was found in a publication from the 1990s. The power transistor must...