This circuit was obtained in an old documentation, but it is still current by the used components. The circuit must be powered by a 12 V regulated power source.
This transmitter for the 40 meter or 7 MHz band was found in a magazine 73 for radio amateurs of...
This sinusoidal oscillator was found in Radio Electronics in 1989. It uses a 741, but other...
This circuit changes the actuation curve of a 47k or 50k linear potentiometer so that it becomes...