This circuit was obtained in an Electronic Design from the 80's. It has the adjustment of the gain through a simple potentiometer. The power supply must be symmetrical.
This circuit was found in an old American publication. The transformer is the type of output found...
This current source circuit with the CA3130 was found in a 1977 publication. The circuit provides...
The project presented consists of a flasher alternated with relay, which can be installed at the...