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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[CQ\-Contest\]\s+Balun\s+design\s*$/: 3 ]

Total 3 documents matching your query.

1. [CQ-Contest] Balun design (score: 1): Author: "Guy Molinari" <guy_molinari@hotmail.com>; Date: Sat, 04 Feb 2006 19:32:53 +0000; I need a balun design to match 50 ohm unbalanced to 100 ohm balanced (2:1). I have a T-200-2 core and am winding it as follows: A bifiliar winding with one long and 1 short wire. This goes for 12 tur; /archives//html/CQ-Contest/2006-02/msg00063.html (7,003 bytes)
2. Re: [CQ-Contest] Balun design (score: 1): Author: Sinisa Hristov <shristov@ptt.yu>; Date: Sat, 04 Feb 2006 19:41:18 -0500; Exact single-step 50 Ohma unbalanced to 100 Ohms balanced is difficult. Following approximations may be useful. 50 Ohms unbalanced to 89 Ohms balanced. Make a quintifilar winding and connect all 5 "; /archives//html/CQ-Contest/2006-02/msg00066.html (7,893 bytes)
3. Re: [CQ-Contest] Balun design (score: 1): Author: "Mario" <s56a@bit.si>; Date: Sun, 5 Feb 2006 10:11:33 +0100; Take RG-59 75 Ohma coax, make 5 turns, extend inside wire for one more turn each end (7 altogether). Use coax shield for 50 Ohms input, inside wire for slightly un-balanced but isolated 100 Ohms outp; /archives//html/CQ-Contest/2006-02/msg00067.html (7,057 bytes)

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