hey dont know how this site works i am just new to all this but i do have some help required thats why i am here in the first place before i ask i must say that i am not a student dont have any school educational background but i do love to play around with electronic devices every now and then so i be direct if there is any expert in electronics i am tryin to built a circuit diagram which is actually an automatic switch over between two dc voltage supplies of 12volts and 30 volts for the same load so anyone needany help i dont knowhow to aproach this i know iwill have to usesome timersplzhelp

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