This circuit is from a documentation about the MC1723, Motorola equivalent of the well-known 723. The transistor admits equivalent and must be mounted in a good heat sink.
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...