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.
The excitation of a loudspeaker with a tone of approximately 1 kHz, in an audible warning system, can...
This circuit is built around a component that is not very common today. It consists of a precision...
We found this circuit in an American publication from 1977. Operationals can be type 741 with...