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4:1 Air core balun


Detail on the balun I'm using with my new Windom antenna The PVC pipe on hand here was 1-5/8" in diameter, so I dropped a turn or a little less
post 22 Mar 2024
4:1 Air core balun

Toroid & balun Links

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Balun HF 4:1
Un balun 1:4 realizzato per alimentare una windom 40 20 e 10 metri

Simple balun
With these three wires I made 18 windings around the ferrite rod

A balun using ferrite rod
so here's some tips to help you make 1:1 and 4:1 current type Baluns that will save you some cash! You need

Constructing a 6:1 RF transformer
These notes primarily relate to the construction of 4:1 Unbalanced to Unbalanced, Ruthroff voltage transformers UnUn, where one end of the windings are connected to ground


Antenna splitter per VHF-UHF per quattro ricevitori

Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter

Kits and Components

Amateur radio kits by Kanga US

50MHz to 28MHz RX Converter

50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal