[Antennas] Running Ladder Line Through a Wall

[Kevin Nathan]

Hello Everyone,
 
I am using as one of my antennas a McCoy dipole fed with window line.  I
want to use the balun built into my Tentec 238B and need to bring the ladder
line through the wall using an existing hole drilled for RG8 coax.  I know
there is a method of using two parallel pieces of RG-8X for example, but I
can't remember exactly how the wiring goes to do this.  Could someone on the
list please direct me to the appropriate spot in the ARRL Antenna Book or
let me know what the appropriate method is?  Or, point me to a good, high
quality remote current balun I can use to replace the one I just had arc on
me?  I run a maximum of about 600 watts with the ALS-600 solid state amp.
 
Thanks much for your help and very 73.
 

Kevin :)
Amateur Radio:  K7RX
Navy Marine Corps MARS:  NNN0SHS