Re: New Mod, New Antenna, 15 new uldx loggings


Gil Stacy
 

Mark,
My favorite 9:1 transformer is two small FB77-6301 beads epoxied parallel together and then wound with 3/6 turns of #24 magnet wire. This forms a mini-binocular transformer. This design was originated by Gary Breed the inventor of the K9AY receive antenna. Steve Ratzlaff tested this agains the larger FT 114J toroid as you described and while the larger toroid was slightly better in his spectrum analyzer at certain frequencies, it probably would not have made a difference at the headset.
73 Gil

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