how can I change the supply with a booster from 5-10v dc to 400-500v dc
i know i use ne555 and inductor but i just a student and dun know how to make it
also i need to change anything else?
so plz help me

http://forum.allaboutcircuits.com/attachment.php?attachmentid=68858&stc=1&d=1400779904

 

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