Automatic emergency light

snowboy3k

New Member
Please am doing on this project above but i dont know the component to replace some of the circuit can someone help me out here..T1 SL100, T2 BD140, T3 TIP2955,T5 LF14 and D10 SI100, i have attech the circuit diagram of the project below
 

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The very old SL100 transistor is available in India. But any little NPN transistor will work. I would use a 2N3904 transistor.

You need a photo-transistor, not a photo-diode. Get a photo-transistor that is available in your country.
 
I think audioguru's post makes this one the one we're supposed to pay attention to =)
 
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