We found this circuit in a French documentation from the 80's. The components used are still common and the circuit can generate signals from 10 Hz to 100 kHz.
This interesting circuit, found in a 1984 documentation, captures stations in the FM band and...
This circuit is from a 1967 General Electric SCR manual. The circuit supports other SCRs depending...
This simple low current source for the bench was found in ancient American documentation. The...