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.
This two-transistor circuit was found in the September 1971 issue of Radio Electronics magazine. The...
This circuit has its frequency controlled by a 1MHz crystal. The circuit must be powered by a...
A portable radio with greater power, such as those using medium or large batteries, can be used as a...