This dimmer was found in the Electronics Experimenter Special projects of 1983. The circuit uses common components. The MOSFET can be of any type according to the lamp.
This circuit uses two relays that switch when the voltage exceeds the value given by zener D2. The...
This circuit is from the 80's integrated circuit manual itself. The component is not as common today...
This circuit was found in a French publication called Generation Electronique, It can be assembled...