Well, might work. Another idea though, check with Fair-Rite - I believe that they have some cores that wil fit over .405 RG-8, and I know they have lots that sill fit over RG-58 or RG-8X. If you don't mind removing the connector, you can just slip a bunch of them over the end of the cable and use wire ties to keep them from sliding up and down the cable. I've left them out in the weather for years with no adverse effects. They also have snap-ons if you don't' want to remove the connector. About the only thing that the PVC tube around that W2AU balun does is hold the connectors ( and maybe trap moisture).
You didn't say what kind of cable, but winding RG-8 around a 1" form can be sort of a pain! 73, Charlie, K4OTV -----Original Message----- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Gary Smith Sent: Thursday, October 24, 2013 7:25 PM To: topband@contesting.com Subject: Topband: Balun question Though this reflector is for 160M I have an 80M question that might be best asked here. My father W1BML is on an 80 meter net nightly. His antenna in an inv-V with 40 & 80 elements though he never uses 40 any more. I needed to fell a couple of trees to remove branches that were touching his copperweld and the W2AU balun he had broke in two during the process. (Don't ask, your imagination is probably correct) :) And he would like it put back the way it was, with a balun. He's 96 so I try to keep him happy. I'm thinking 10 or so rolls of coax around 1' in diameter ought to be fine for a choke on 80. Any better suggestions? Thanks, Gary KA1J _________________ Topband Reflector _________________ Topband Reflector