im looking for a diy power meter some thing like this
http://www.youtube.com/watch?v=oC0vf8ooovQ
or this
http://www.youtube.com/watch?v=R9s2hO-PCsA
http://www.youtube.com/watch?v=oC0vf8ooovQ
or this
http://www.youtube.com/watch?v=R9s2hO-PCsA