This filter, found in an old manual, has characteristics of reduced overvoltage given by the graph next to the diagram. Formulas for component calculations are given next to the diagram.
Mouser has a huge list of sensors for the most diverse applications such as automation, IoT,...
This low-noise, low-drift amplifier was found in a 90's EDN. It can be implemented with modern...
This converter for the 150 MHz band was found in an American documentation. Transistors are...