When the fuse blows, the neon lamp flashes at a frequency determined by the capacitor. This circuit also works on the 220 V power grid. The rectifying diodes can be 1N4004 for the 110 V network and 1N4007 for the 220 V power grid.
When the fuse blows, the neon lamp flashes at a frequency determined by the capacitor. This circuit also works on the 220 V power grid. The rectifying diodes can be 1N4004 for the 110 V network and 1N4007 for the 220 V power grid.