Fast LED flashing 1.5V

The Fast LED flashing circuit. that apply to AA Cell 1.5V. By add resistor 1K size between pin 1 and 8 pin of IC number LM3909. It will rate winking expansion 3 again times. When build capacitor 330uF sizes suit 1 pin and 2 adaptation pin modify by the tow electronic part outside. It make way for choose for resistor outside equal to 3K,6K and 9K. Other detail , see in the circuit.

Simple flashing light by transistor BC548
This circuit basically the base of LED Flashing circuit, the character generally be have Transistor stay 2 work alternate be be like the automatic switch that alternate work. if wasp output a ...
One LED display flashing low volt
This circuit is LED display flashing with one LED. By when you press Switch S1 give wasp the circuit then to liberate. It as a result make LED1 bright about 0.5 second. By this circuit uses ...
Beautiful car brake lights by BC327
This circuit will like to set up in a room takes of an automobile mostly, for the beauty or Beautiful car brake lights circuit. It make a car that follow to come to obviously seen is skilled at in ...
Two LED flashing alternate Display using LM324
This be LED display circuit , that interesting. By it will wink to alternate between LED the red and LED the green. This circuit can work with IC LM324, by part of IC op-amp 4 pcs. number ...
1.5 Volt LED Flashers by 2N3904
The discrete 3 transistor circuit at the lower right would need a resistor (about 5K) in series with the 1uF capacitor to widen the pulse width. Read More Source: http://ourworld.compuserve ...