Found in old documentation, this circuit makes use of amplifiers of the time, uncommon today. Next to the diagram, the formula for calculating the components.
We found this configuration in a Radio Electronics from 1989. The circuit can be designed with...
This circuit makes use of the LM11, 112 or 113 operatives and was found in a 1980s documentation. The...
This ultra-simple test circuit is of great use in any electronics bench. The power is supplied by a...