This traditional circuit generates a 200 Hz sinusoidal signal. The frequency depends on the capacitors and the transistor can be a BC548. We found this circuit in a 1979 documentation.
With this circuit that we found in documentation from 1989, it is possible to transform an...
This circuit was found in Signalite documentation from the 1960s. The circuit uses a pulse...
This circuit with RTD sensor was found in the Radio Electronics magazine of April 1992. At the...