Backpacker balun kit
These small, lightweight baluns are perfect for field/portable antenna deployments. The kits are simple to assemble, and can be configured to provide your choice of a 1:1, 4:1, or 9:1 impedance ratio. The dual-core design assures low loss and wide bandwidth. These baluns are easily capable of handling 25 watts SSB and 15 watts CW when terminated with a good feedpoint match, and are optimized for use on the 40-10 meter bands. Weight is 1.7 oz (48g). The kit includes a pre-drilled Hammond enclosure., balun cores, wire, and gold-plated binding posts. A phono (RCA) jack mounts in the enclosure, and a RCA-BNC adapter is included with each order.
Balun kits are €34.99 each, and shipping is €2.00 per order. The “cart” button below will link to PayPal for payment.
I won one of these kits at a QRP club picnic a couple of years ago, and recently decided to build up a 9:1 unun with this kit. I have wound and re-wound the cores a couple of times, and double-checked and triple-checked the wiring, but I just can’t get the silly thing to work right. When I wire it up as a 4:1 balun, the thing works great. It just doesn’t want to work as a 9:1 unun? Is the wiring diagram correct? Has anyone else been able to get it to work as a 9:1 unun?