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Category: Ham Radio: Baluns/Ununs
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| Description: Baluns and UnUns.
Baluns (balanced to unbalanced transformers) and ununs (unbalanced to unbalanced transformers) are particular types of transmission line transformers. Unlike conventional transformers, they transmit the energy from input to output by a transmission line mode instead of by flux linkages.
Ham radio operators use Baluns and Ununs to act as a choke - isolating the input from the output, thereby allowing transmission line currents to flow. Various types of baluns and ununs are created to transfer energy (along coaxial cable) with maximum efficiency (minimal loss). Many ham radio operators make their own baluns and several companies offer components to enable this. |
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9:1 balun construction
9:1 balun construction
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| | Hits: 3138 | Rating: 6 | Votes: 1 | Added: 9-Aug-2005 22:01 GMT | |
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Amidon Inc
Amidon supplies baluns, ununs, ferrite beads, toroids, cable clamp-on split beads, iron powder toroids, toroid experimenter kits, ...
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| | Hits: 766 | Rating: 0 | Votes: 0 | Added: 23-Aug-2005 21:07 GMT | |
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Baluns - F6ITV
Baluns - F6ITV a discussion of baluns
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| | Hits: 945 | Rating: 5 | Votes: 1 | Added: 10-Aug-2005 02:30 GMT | |
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Common Mode Chokes for Ham Radio
This article (book?) introduces common-mode chokes, why they are used, how to make common-mode chokes for HF, selecting ferrite components, noise sniffing, a 4:1 current balun, difference mode power line filters, and more.
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| | Hits: 842 | Rating: 9 | Votes: 1 | Added: 5-Jul-2006 15:49 GMT | |
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DX Antennas
DX Antennas is an australian company that sells off-center fed dipoles (OCF) and longwire baluns (current baluns).
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| | Hits: 787 | Rating: 9 | Votes: 1 | Added: 8-Nov-2005 22:39 GMT | |
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LDG Electronics Inc
LDG produces coax switches, watt meters, baluns, and tuners.
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| | Hits: 479 | Rating: 0 | Votes: 0 | Added: 9-Aug-2005 03:41 GMT | |
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Palomar Engineers
Palomar offers RFI Kits, baluns, loop rx antennas and the tuner-tuner.
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| | Hits: 411 | Rating: 0 | Votes: 0 | Added: 10-Aug-2005 14:38 GMT | |
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Palstar
Palstar offers baluns, filters, and cw keyers for ham radio use.
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| | Hits: 405 | Rating: 0 | Votes: 0 | Added: 16-Aug-2005 17:16 GMT | |
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Purpose of a balun
Purpose of a balun
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| | Hits: 495 | Rating: 0 | Votes: 0 | Added: 9-Aug-2005 22:02 GMT | |
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