Tech Articles

How a 1:1 Guanella-Balun (Current-Balun) Operates By Jerry Sodus, KM3K In the spirit of the hobby, I pass along what I have learned and don’t profess to know all the answers. 1. The primary reason … read more

With the advent of new technology in TV's, power supplies/chargers, new lighting products and other modern devices, there is an unfortunate downside from the electronic noise many of these items gen … read more

This is why use of a mix 43 for HF applications is almost always a mistake.Balun and Unun Core SelectionTransmitting balunsOccasionally errors are made regarding core selection and this especiall … read more

As with most equipment, we have become accustomed to determining our needs relative to power handling capability and the output power being used. However, when it comes to baluns and ununs, this rat … read more

At least once a week we receive a request a for high ratio balun (6:1, 9:1, 12:1) to manage the transition from high impedance ladder line / open wire feedline to coax.  This is a common mis … read more