811A Tesla Coil

 Hi All,
I am new to the list, but have been evesdropping for about two months. It
really is a 
great resource and I have been getting much bigger sparks out of my spark
gap coil
since I have learned so much from this list and a lot of the pages that are
on the net.
I would now like to construct an 811A Tube type coil that I have seen in
action on a 
video. Can anyone tell me where I can find detailed construction data? It
may have 
possibly have been a John Freau design. Thank you,