This circuit was found in Radio Electronics from the 90s. The components used are common, and the transistors and CIs must be equipped with heat sinks.
Published in Radio Electronics magazine in March 1963, this circuit uses 4 transistors of the...
The LM11 operational amplifier is not common today. The circuit was obtained in the Linear...
This project was found in a 1988 documentation. The circuit intermittently activates an aquarium...