Single transistor LED Flasher BD139 | Simple

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hi friends in this video I will make a simple led flasher using single BD139 transistor... this is very simple and reliable This circuit work by charging and discharging the capacitor by resistor . and the bd 139 works as switch

#led flasher using optocoupler817 #howtomakealedflasher
#police led flasher #police led flasher circuit
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Комментарии
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sir, the led does not blink. Its lighting constantly. Please tell whats the issue. Thnaks in advance.

tnamen
Автор

Brother I make this circuit but first time work and second time not work

ghanshyamsahu