Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be replaced with equivalents. MOSFET is the critical component of the circuit.
This circuit can be used in alarms, data links or áudio links using IR radiation. The circuit is...
The figure shows the basic configurations for unijunction oscillators. They are relaxation...
This circuit switches on an external load after a certain interval given by the capacitor. The...