1:1 voltage balun

10 meter wonderbar antenna - 10 Meter WonderBar Antenna, present an SWR 1:1 over entire band, great DX, rotateable by hand, 8 ft long - build for about $20

7elements 21MHz OWA Yagi - An Excellent 15M compact 7el OWA Yagi for the 21MHz band. SWR remains below 1.1:1 from 21-21.45MHz. Tapered elements in Metric and USA sizes

QRO baluns - Construct your own heavy-duty baluns capable of matching your amp’s output to various antennas.

Basic Balun Theory - Baluns are still a mystery to some radio amateurs and the only way to understand them is to learn what they are and how to use them.

Antenna Baluns - ON9CVD antenna baluns general informations.

Wire Baluns - Baluns done with coaxial feed-cable

Core Baluns - About core baluns, measurementes, basic theory and calculations

The Coax Balun - Building balus with coax cables

Coiled Choke Balun for HF - A very practical Balun for HF aerial work is the choke type. It reduces RFI to and from the feeder & at next to no cost or loss.

Creating a simple, easy to make balun Priority listing - Detailed information on several different balun types which are easy to build at home by G0KSC

600:50 Ohm Baluns - Low-cost 600:50 Ohm Baluns by Andrew Corney ZL2BBJ

Baluns - by ON9CVD - The simple 1 : 1 balun is being know in a variety of constructions. A dedicated chapter seems appropriate

About baluns - General information about baluns, aspects of the balun problem

Baluns Articles Collection - A PDF file with a compilation of articles about baluns taken from differen sources

4:1 Dual ferrite bead balun - The Dual-Ferrite-Bead 4:1 HF Balun, some preliminary measurements

PVC Yagi antennas - techniques - Collection of different techniques to homebrew PVC yagi antennas, including elements assembling, baluns and chokes, radiator box tips and tricks by dk7zb

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

The EWE Antenna - EWE Antenna plan with a 9:1 balun

Radio - The Easy Way - PDF article on Antenna of non resonant lenght, line attenuation, the transmatch, baluns by WB5IIR

Anaren - Manufacturer for splitter and combiners, baluns, directional couplers hybrid couplers, modulators, mixers, phase discriminators, antenna feeds.

FT-817 DC Circuit Protection - A schematic for a DX circuit protection for the Yaesu FT-817, provides protection from the external power supply overvoltage by DL2LTO in german

Gagacom - Amateur radio accessories dealer based in Wehrheim Germany, offer Antennas, baluns, filters, antenna tuners, dummy loads, swr wattmeters by Palstar

Battery voltage booster - A battery voltage booster project with pictures and schematic by KD7W

DRAKE TR7 Downloads - Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS

A 2 tube regenerative receiver - A low voltage 2 tube regenerative receiver