Lightning Bolt used to offer a compact 2:1 balun that was described as a "transmission line transformer that is trifilar wound on a ferrite core." Can anybody direct me to details on such a single co
Barry, I wonder if it was an UnUn rather than a BalUn. Sevick shows a simple 2.25:1 UnUn transformer comprising a trifilar winding on a single core. I can't think of any way you'd do a true 2:1 TL Ba
Steve, it was a balun for matching their quads and delta loops to 50-ohm coax and was magically compact (~3in diam X 2in high). Perhaps I need to find one and dissect it. Barry N1EU _________________
Almost certainly a 2.25:1 un-un or a five winding toroidal transformer. 73, ... Joe, W4TV _______________________________________________ _______________________________________________ TowerTalk mai
A friend of mine was needed to change the "balun" of his LBA quad recently (a year ago). I called Mike WB3ECM who was constructed these antennas to find a replacement. He told me that he is retired n
That Balun Designs model is a 2.25:1 UnUn connected to the unbalanced port to achieve the impedance transformation, followed by 1:1 current balun on the load side to achieve the balance. Steve G3TXQ
I found a LB balun I received about 10 years ago that had the SO-239 pull out of it over time. As soon as I can, I will attempt to route out the potting compound with my Dremel and photograph what li
I chiseled the LB matching xfmr apart and Steve G3TXQ and Joe W4TV were correct. It is a trifilar wound 2.25:1 unun. Evidently LB felt a balun was unnecessary (?). Barry N1EU ________________________