[Ham-Mac] OT! 12:1 balun?

[Euphoria]

Hello gurus!

This is way off topic, but I have nowhere else to turn... In a antenna 
project I'm
working at in the moment (multiband broadband dipole), I'm using a 600 
ohm resistant and and a balun. The balun is 12:1 and I have no clue how 
to wind up a device like that. Having made 4:1 and Rybakov Un-Un, I know 
how to wind up a balun, but i can't find any drawings of a 12:1. What I 
need is a good picture or a scetch of a 12:1 balun, or maybe a good 
description, showing how the wires are connected.

Can any of you great Mac-folks help out??


Best 73's!
LA6UOA/Trygve, Norway.