This Linear Technology circuit charges a battery from the energy produced by a wind generator that can be a 12 V dynamo driven by a propeller. FET admits equivalent.
This circuit was obtained in an Electronics World of 1969. It is a crystal oscillator with a 100...
This circuit, shown in the figure, consists of a variable gain amplifier with differential input...
This circuit was found in the July 1992 Radio Electronics magazine. Sensitivity adjustment is made...