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3/17 turns is a 32:1 ratio. I'm using three stacked T240-52 cores with 2/14 turns for a 49:1 ratio. I do use a pair of 220pf caps in series at the low impedance point. Works great on 80-20m with a bit higher SWR on 15 and 10m. I never bothered to fine tune however as I only put it up a couple days before knee surgery.

[QUOTE="Captain Kilowatt, post: 742505, member: 39"] 3/17 turns is a 32:1 ratio. I'm using three stacked T240-52 cores with 2/14 turns for a 49:1 ratio. I do use a pair of 220pf caps in series at the low impedance point. Works great on 80-20m with a bit higher SWR on 15 and 10m. I never bothered to fine tune however as I only put it up a couple days before knee surgery. [/QUOTE]

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