1 to 1 Balun

A 1:1 Coaxial Balun - PDF article on a coaxial 1:1 balun by I0QM

Simple HF Baluns for 50/75 ohm coax - Show diagrams, winding methods and tables of some 1:1 and 4:1 baluns for 1.8 - 30 MHz suitable for use up to 200W (400W peak) on systems using 50 or 75 ohm coaxial cable input where SWR should not exceed 1.6:1.

A model of the W2DU 1:1 choke balun - Notes on making the W2DU choke balun by placing several ferrite sleeves around a coaxial cable.

A 1:1 Coaxial Balun  ^pop - PDF article on a coaxial 1:1 balun by I0QM

1 to 1 Current Balun - A 1:1 current balun by N5ESE

A Cost Effective Current-mode 1:1 Balun - A cost effective current-mode 1:1 balun can be constructed from a length of coax and a rod typically used for a broadcast antenna loop-stick, some electrical tape, cable ties, a length of PVC water-pipe and some connectors.

A model of the W2DU 1:1 choke balun - Notes on making the W2DU choke balun by placing several ferrite sleeves around a coaxial cable.

Air Cored 1:1 HF BALUN - An air cored 1:1 balun for 3.5 to 30.0 MHz

Balun 1:1 - 1:1 Ruthroff voltage balun using a T200-2 Toroid core

Balun for HF wire dipoles - a neat 1:1 50 ohm balun for use on HF horizontal wire dipoles.

Guanella 1:1 VHF choke balun - A model of a Guanella 1:1 VHF choke balun using a FT140-61 core

How to Build a UN-UN - Building a 1:1 balun, aka un-un, with an Amidon Ferrite toroid core T 200

Low cost 1:1 balun - A balun don't depend on use of ferrite beads, but use steel wool to attenuate any RF on the outer braid

N5ESE's 1:1 Current Balun - classic 1:1 current balun

Practical Guanella 1:1 balun - This article proposes a lossy transmission line model of a practical Guanella 1:1 balun that is effective for all frequencies within and immediately adjacent to the pass band

QRP 1:1 Current-type Balun for Portable Use - A ferrite-loaded coaxial RF choke which just happens to yield the same result as a 1:1 current balun

Simple HF Baluns for 50/75 ohm coax - Show diagrams, winding methods and tables of some 1:1 and 4:1 baluns for 1.8 - 30 MHz suitable for use up to 200W (400W peak) on systems using 50 or 75 ohm coaxial cable input where SWR should not exceed 1.6:1.

The 1:1 Current Balun - About 1 to 1 current balun by Roy Lewallen, W7EL

Winding an Effective 1:1 Coax Balun - Guidelines to wound a balun by WA2SRQ