A 12 Volt power supplied designed for Ron's Modular Burglar Alarm. In-addition, being a popular supply voltage circuit will have many other uses as well as.
Alarm Power Supply Circuit Structure:
The 7812 never has to dissipate more than 2-watts, so its heat sink can be smaller.Many of the components, which are shown lying flat on the board, are actually mounted upright. The links are bare copper wire on the component side. The heat-sinks are folded strips of aluminum, about 2mm thick. Use a well-insulated panel mounted fuse holder for the mains supply to the transformer, and fit it with a 1-amp fuse.
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