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1. [Amps] Skin Effect and Wire Current Capacity at HF (score: 1): Author: "Dan Levin" <djl@andlev.com>; Date: Thu, 14 Apr 2005 22:22:43 -0700; I'm trying to design a coil that will be used in a 1500 watt filter at HF. I know that I need to allow for frequency related skin effect that will reduce the area of the wire or tubing carrying the c; /archives//html/Amps/2005-04/msg00291.html (7,458 bytes)
2. Re: [Amps] Skin Effect and Wire Current Capacity at HF (score: 1): Author: Karl-Arne Markström <sm0aom@telia.com>; Date: Fri, 15 Apr 2005 07:58:04 +0200; The theory behind this is quite involved, but is well described in Terman's "Radio Engineer's Handbook" (pp 28 - 37 in my 1943 edition). Basically you can find the RF resistance per unit length at a; /archives//html/Amps/2005-04/msg00292.html (10,640 bytes)
3. Re: [Amps] Skin Effect and Wire Current Capacity at HF (score: 1): Author: "Michael Tope" <W4EF@dellroy.com>; Date: Thu, 14 Apr 2005 23:49:34 -0700; The amount of heating you will see in your inductor will depend on the ratio of the loaded vs. unloaded Q of the inductor. In circuits like TVI low-pass filters, the loaded Q is very low (something l; /archives//html/Amps/2005-04/msg00293.html (9,617 bytes)
4. Re: [Amps] Skin Effect and Wire Current Capacity at HF (score: 1): Author: R@contesting.com;Measures <r@somis.org>; Date: Fri, 15 Apr 2005 01:43:26 -0700; E. F. Johnson rated its #14 gauge Cu roller coil at 3A @ 30MHz. Rich Measures, 805.386.3734, AG6K, www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com; /archives//html/Amps/2005-04/msg00294.html (8,988 bytes)
5. Re: [Amps] Skin Effect and Wire Current Capacity at HF (score: 1): Author: "Will Matney" <craxd1@ezwv.com>; Date: Fri, 15 Apr 2005 14:10:40 -0400; Dan, Check some of the earlier handbooks back in the 80's or 70's. They did have a table in there for frequency and power to wire size. At 30 MHz, you'll need around 3/16"-1/4" copper tubing for the; /archives//html/Amps/2005-04/msg00299.html (10,063 bytes)
6. Re: [Amps] Skin Effect and Wire Current Capacity at HF (score: 1): Author: "Carcia, Francis A HS" <francis.carcia@hs.utc.com>; Date: Fri, 15 Apr 2005 14:21:41 -0400; I think it was 1 KW input am modulated so close enough. Dan, Check some of the earlier handbooks back in the 80's or 70's. They did have a table in there for frequency and power to wire size. At 30 M; /archives//html/Amps/2005-04/msg00300.html (10,383 bytes)

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