Found in the September 1998 issue of Electronics Now, this circuit uses an encoder with reed switches. The circuit indicates the position of a “indicator” and thus the direction of the wind.
The trigger point of this trigger can be set to P. The field effect transistor can be the BF245 and...
This common circuit using operational amplifiers was found in the 1993 issue of Radio Electronics Special...
This nice analog indicator circuit was found in the January 1974 issue of Radio Electronics...