In the figure we have a circuit that uses unusual components, being indicated for low frequency applications. The circuit signal is generated by a unijunction transistor that oscillates at 8 kHz.
This small circuit for the medium or short-wave range, depending on the coil, was found in a...
Pressure switches are used in this circuit that quickly turns off the supply of a load if...
This circuit will trigger an audible warning signal after the end of the pre-programmed timing. Using...