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QCX mini build for 15m - questions about LPF components

Mark - N2IU All Messages By This Member #127601 Im sure someone has done this before i did see the 10m build info but... ? wondering about: T1 ?17m is 3T 3T 3T 22T ?--> what is it for 15m? (thinking 3T 3T 3T 20T ) C30 17m is 30 or 33pF but after inventory I only have a 56pF cap left, which is correct for 40m, but what is C30 for 15m? L1/L3 ?13T for 17m --> 15m? L2 15T for 17m --> 15m? L4 9T for 17m --> 15m ? ? i can guess at these but wanted to know who has done this and how it turned out? thanks ! Mark
Hans Summers All Messages By This Member #127612 Hi Mark For T1, 3-3-3-20 will work fine.? L4 make it one turn less than 17m; so: 8 turns.? C30 leave off altogether.? Low Pass Filter capacitors and toroids windings should be the same as the 15m LPF kit manual says 73 Hans G0UPL toggle quoted message Show quoted text On Sun, Aug 11, 2024, 20:25 Mark Ennamorato via <mark.ennamorato=[email protected]> wrote: Im sure someone has done this before i did see the 10m build info but... ? wondering about: T1 ?17m is 3T 3T 3T 22T ?--> what is it for 15m? (thinking 3T 3T 3T 20T ) C30 17m is 30 or 33pF but after inventory I only have a 56pF cap left, which is correct for 40m, but what is C30 for 15m? L1/L3 ?13T for 17m --> 15m? L2 15T for 17m --> 15m? L4 9T for 17m --> 15m ? ? i can guess at these but wanted to know who has done this and how it turned out? thanks ! Mark
Mark - N2IU All Messages By This Member #127661 thank you so much Hans! ? do you ever sleep??? ?;-) best regards Mark
Hans Summers All Messages By This Member #127662 ? thank you so much Hans! ? do you ever sleep??? ?;-) No! 73 Hans G0UPL

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