VK1OD Theme page: Baluns

• Concepts
• Current baluns
• Voltage baluns
• Other

Concepts

• Baluns in antenna systems
• Baluns and ATUs
• Is a 4:1 balun a good choice for use with an ATU on HF?
• Counting turns on a toroidal core
• Inductance of RF cored inductors and transformers
• Baluns in antenna systems
• Definition: Current Balun, Voltage Balun
• Can a balun alter the tuning of an antenna system
• Balanced ATUs and common mode current
• Are RF toroidal inductors self shielding
• Identifying ferrite materials
  

Current baluns

• A model of a practical Guanella 1:1 balun
• A model of the W2DU 1:1 choke balun
• A model of a Guanella 1:1 choke balun using a Jaycar LO1238 core
• A model of a Guanella 1:1 choke balun using two Jaycar LF1260 cores
• A model of the W2DU 1:1 choke balun using Jaycar LF1258 cores
• A model of the W2DU 1:1 choke balun using Jaycar LF1260 cores
• A review of the Guanella 4:1 balun on a shared magnetic circuit
• A model of a Guanella 1:1 VHF choke balun using a FT140-61 core
• Common mode choke design tool
• HF current balun project
• Differential flux leakage in a Guanella 1:1 balun
• A narrowband current balun using coax line sections

Voltage baluns

• A model of a practical Ruthroff 1:4 Unun

Other

• A perspective on the popular 4:1 Ruthroff balun at the base of a ground mounted untuned multi-band vertical
• The G0KSC hybrid balun

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© Copyright: Owen Duffy 1995, 2012. All rights reserved. Disclaimer.