This circuit was found in a 303 Circuits issue of Elektor magazine from the 1990s. The circuit uses an equivalent operating system. The source is not symmetrical.
This circuit measures the conductivity of a saline solution, which is affected by the electrolysis effect....
This circuit provides a negative voltage of -5 V with a current of up to 100 mA. The circuit is...
Line voltage compensation (CB8816E) This circuit for the alternating current line (AC line) was...