Below are views of 3 baluns that I own, with their covers removed to see the internals. The first photo shows 2 LDG baluns that are rated for 200 W. The one on the left is a 1:1 current or choke-type balun. The one on the right is a 4:1 balun that appears to be a voltage-type balun. For some in-depth discussion of balun types, see
this article by W7EL.
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LDG baluns |
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1:1 Current Balun |
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4:1 Voltage Balun |
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Above are schematics of the two LDG baluns, using graphics from the W7EL article.
The next 4 photos show the internals of a DX Engineering balun DXE-BAL050-H10-AT that is rated for 5 kW CW and 10 kW SSB.
- John
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