Ron
If it’s a F12 balun, the long skinny one, it more than likely shorted out
internally at the so-239. I have had two go bad.
I replaced them with a balun designs 1:1 choke balun. Bob also sells a nice
Boom mount for the balun.
Rich - N5ZC
Sent from my iPad
> On Jul 20, 2020, at 7:19 PM, Ron Hill <hamstuffbyw7nn@gmail.com> wrote:
>
> The 20 year old beam appears to have suddenly developed an infinite SWR.
> Replaced the coax below the rotor loop connection, so I am assuming the
> balun has toasted. Any recommendations for a replacement?
>
> Thanks
>
> Ron
> W7NN
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