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Circuit diagram
Parts
- D1-4 = 1N4001
- IC1 = 7808 (voltage regulator)
- C1 = 1000uF/16V
- C2 = 1uF/63V
- IL1-4 = 6V/0,05A BULB
- BH1-4 = AA BATTERY-HOLDER
- F1 = 20mA FUSE + HOLDER
- T1 = TRANSFORMER (10V/0,25A)
circuit from http://www.electronics-lab.com/