We found this circuit in an old General Electric documentation. In fact, PUTs are not common components today. The circuit is valid as a reference.
August 2016 - It can be obtained from Mouser Electronics the new temperature and humidity sensors from...
We found this circuit in a 1967 Electronic design. However, it can be easily implemented even...
This circuit was obtained from a 1977 magazine, but can still be mounted using BC548 for TR1 and...