This filter was found in an American publication from the 1980s. The circuit can be implemented with any operational amplifier. The power supply must be symmetrical.
This circuit doubles the input voltage, converting, for example, 6 V and 12 V. The output current is...
The LM105 integrated circuit consists of a voltage regulator integrated in a metallic enclosure. The...
The CA3020 integrated circuit was one of the first commercial types, sold in the 1960s. The...