Boom...Mini Project burns into flames!

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Today, Me and Vikram after having finally assembled all the components for our Mini project (Electronics): Auto Emergency Light, started building up the circuit at around 9 o'clock night. It took us around 3 full hrs to complete it and less than 3 seconds to blow it up. The mistake was that the phase and neutral wires in the input were wrongly connected to the mains 230V, in fact they were interchanged! What followed was a BOOM with a certain amt of fireworks and there lay our bread board...Resistors all black, capacitors covered with black ashes of blown resistors and all LEDs and BJTs destroyed! Well, we were spellbounded at first, then realising that we had to submit it in just a couple of days time really scared the hell out of us!
Lets just hope that All is well..., wait for tomorrow to come up with a Plan B...and that the Plan B is a million times better!

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