Topband: [Bulk] Re: 160 GP Choke

Jim Brown jim at audiosystemsgroup.com
Tue Sep 30 13:05:11 EDT 2014


On Tue,9/30/2014 9:36 AM, Tim Shoppa wrote:
> The 0.75" #75 clamp-on is 0475176451 and circa $15. By my 
> connibulations it'll be a really close squeeze to get 5 turns of RG-6 
> through there. I think 5 turns of RG-58 could happen.

And you would not WANT to wind turns through it -- that would move the 
resonance down to the AM broadcast band, where you would get something 
on the order of 500 ohms (and less on 160M).  16 bifilar turns on a #31 
core gets you in the range of 5,000 ohms on 160M.

73, Jim K9YC



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