Tuesday, October 28, 2014
LM3909 bassed Continuity tester circuit diagram
A very simple continuity tester electronic project can be designed using the LM3909 LED flasher integrated circuit .
This continuity tester project , require few external electronic parts and can be used for testing continuity of coils and cables .
This continuity tester project must be powered from a 1.5 volt DC power supply , you can use a 1.5 volts battery cell .
The C1 capacitor must have a value of 10uF an R1 resistor must a have a value of 1kohms . Speaker used for this project can be a small 8 ohms impedance speaker .
![Simple]()
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