The FETs of this circuit can be the BF245. The circuit is from an old documentation and can be used in the amplification of infrasonic waves, of a sonic attack, for example.
We found this circuit in an old oscilloscope publication. With it, it is possible to observe the B...
We found this circuit in an Electronic Engineering from the 90s. It applies to any logical family....
This circuit is from a documentation for 1976 radio amateurs. We can implement this circuit with...