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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Q\s+of\s+coil\s+Al\s+vs\s+Cu\s+\-\s+Re\:\s+OT\:\s+Inductor\s+Calculator\s*$/: 3 ]

Total 3 documents matching your query.

1. [TowerTalk] Q of coil Al vs Cu - Re: OT: Inductor Calculator (score: 1)
Author: jimlux <jimlux@earthlink.net>
Date: Thu, 28 Feb 2019 13:05:26 -0800
higher Q vs aluminum tubing, for the same OD tubing...period. Same deal with copper wire vs aluminum wire...for the same gauge. Dont believe me, try winding an aluminum tubing coil, identical to wha
/archives//html/Towertalk/2019-02/msg00195.html (9,524 bytes)

2. Re: [TowerTalk] Q of coil Al vs Cu - Re: OT: Inductor Calculator (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Thu, 28 Feb 2019 14:50:05 -0800
Aluminum resistivity is 2.65, Copper is 1.68 Skin depth at 7MHz for AL is 30.97 micron, for Cu is 24.66 micron So, resistance of a coil in Al vs Cu is = 2.65/1.68 * 24.66/30.97 = 1.26 It is simpler
/archives//html/Towertalk/2019-02/msg00199.html (9,604 bytes)

3. Re: [TowerTalk] Q of coil Al vs Cu - Re: OT: Inductor Calculator (score: 1)
Author: jimlux <jimlux@earthlink.net>
Date: Thu, 28 Feb 2019 15:37:47 -0800
Aluminum resistivity is 2.65, Copper is 1.68 Skin depth at 7MHz for AL is 30.97 micron, for Cu is 24.66 micron So, resistance of a coil in Al vs Cu is = 2.65/1.68 * 24.66/30.97 = 1.26 It is simpler
/archives//html/Towertalk/2019-02/msg00202.html (11,414 bytes)

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