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.
We find this circuit in 1975 documentation. The circuit can be used with other operational...
The circuit shown makes use of a symmetrical 15 V source and an LM3900 transconductance...
This circuit from a 2001 publication converts binary values programmed in 4 keys into hexadecimal values...