7805 5V 1A Regulated Power Supply with Overvoltage Protection Circuit

This is the 7805 5 volts 1 ampere Regulator with Overvoltage Protection Circuit. Most of the COMS, microcontrollers and TTL ICs require a well regulated power supply.

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AC Neon lamp filament or semiconductor blown fuse indicator circuit

AC Neon lamp filament or semiconductor blown fuse indicator circuit

This simple circuit tells you have a blown fuse without removing the fuse from its holder or semiconductor fuse status. This neon lamp fuse indicator circuit makes neon lamp flash up if a fuse blows or open.

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