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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+W1JR\s+Balun\:\s+choking\s+impedance\s+and\s+power\s+dissipation\s*$/: 3 ]

Total 3 documents matching your query.

1. [TowerTalk] W1JR Balun: choking impedance and power dissipation (score: 1)
Author: ccc@space.mit.edu (Chuck Counselman)
Date: Fri Jul 18 13:12:59 2003
...to which I replied, "I'll measure one and report back." I just wound a "W1JR Balun" as specified, using an FT-240-61 toroid and RG-303; then I measured its common-mode impedance (between the ends
/archives//html/Towertalk/2003-07/msg00301.html (9,754 bytes)

2. [TowerTalk] W1JR Balun: choking impedance and power dissipation (score: 1)
Author: tony.kaz@verizon.net (N2TK, Tony)
Date: Fri Jul 18 14:07:00 2003
Would there be a recommendation to have one design for the high bands (40-160M) and one for the high bands (10-30M)? If so, how many turns through the core would be recommended for each? Tnx N2TK, To
/archives//html/Towertalk/2003-07/msg00303.html (10,888 bytes)

3. [TowerTalk] W1JR Balun: choking impedance and power dissipation (score: 1)
Author: W1JR@arrl.net (Joe Reisert)
Date: Sat Jul 19 10:20:57 2003
Hi Tony, You can surely do what you suggest. The 12 turn one on a 2.4" OD 61 material toroid is very good from 40-10 (and even to 80 meters) meters with high impedance and no resonances. To get to 16
/archives//html/Towertalk/2003-07/msg00327.html (13,241 bytes)


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