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LED Display for power supply 6V or 15V by LM3909

LED Display for power supply 6V or 15V by LM3909

This circuit uses the integrated circuit LM3909 perform be LED Flasher and Oscillator. For Drive LED give Flasher on off with Frequency 2Hz. For formed show of office equipment with Battery For battery 6V size Capacitors
CT be valuable 400uF, Rs be valuable 1000ohm and RFB be valuable 1500ohm. For voltage 15V size the value of , CT equal to 180uF Rs equal to 3900ohm and RFB equal to 1000ohm. The useful life of battery long because of the circuit uses a little electricity

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