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ir2110 and 555 circuit does not working

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Electricity and electronic circuits always have a minimum of two wires. One wire is for the signal and the other wire is the ground wire.
If an input ground wire is not connected to the ground of a circuit then the circuit will do nothing.
 

Audioguru said:
Electricity and electronic circuits always have a minimum of two wires. One wire is for the signal and the other wire is the ground wire.
If an input ground wire is not connected to the ground of a circuit then the circuit will do nothing.
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i know it, i meant all grounds must be common or independent on the pertinax, may be they are same things i am not sure.

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hey guys, what about this circuit? is there any fault?

20150308_234551.jpg
 

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