Hummmm.......see: http://www.dj0ip.de/balun-stuff/ I seem to think this fellow has a good grasp about the "alien origin" of baluns. 73 Bob, K4TAX On 4/10/2019 12:23 PM, Fred Jensen wrote: > It also spawned the "balun," a mysterious device that may be of alien > origin since no one seems to know exactly what it does or how it does it.