Schematic Volt

5 18V Stabilized Power Supply This power supply will give you fixed regulated output at 5V 6V 9V and 12V while the 18V output is unregulated You c

5-18V Stabilized Power Supply

This power supply will give you fixed regulated output at 5V, 6V, 9V and 12V, while the 18V output is unregulated. You could add some regulated IC like LM7815 or 7818 if you need higher output voltage.


This circuit provide an audio indicator that will act like an alarm if any circuit short contact.