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Total 9 documents matching your query.

1. [AMPS] floating a filament transformer (score: 1): Author: "lncarman" <lncarman@swbell.net>; Date: Thu, 16 Sep 2004 07:22:44 -0500; I've heard over the years of some amp builders floating the filament transformer. I was told that you isolate the filament transformer from ground and add two chokes in the primary side with bypassin; /archives//html/Amps/2004-09/msg00274.html (6,593 bytes)
2. Re: [AMPS] floating a filament transformer (score: 1): Author: Bill Turner <dezrat1242@ispwest.com>; Date: Thu, 16 Sep 2004 07:20:17 -0700; _________________________________________________________ I haven't tried it myself but a couple of thoughts occurred: 1. I doubt if you'd need fewer uH for a primary choke. The transformer has lots; /archives//html/Amps/2004-09/msg00275.html (8,445 bytes)
3. Re: [AMPS] floating a filament transformer (score: 1): Author: R.Measures <r@somis.org>; Date: Thu, 16 Sep 2004 08:04:33 -0700; On Sep 16, 2004, at 5:22 AM, lncarman wrote: I've heard over the years of some amp builders floating the filament transformer. I was told that you isolate the filament transformer from ground and add; /archives//html/Amps/2004-09/msg00276.html (9,069 bytes)
4. Re: [AMPS] floating a filament transformer (score: 1): Author: jsb@digistar.com; Date: Fri, 17 Sep 2004 11:26:43 -0400 (EDT); I have been reading with interest about the filament chokes for 3-500Z, etc. In the photos I've seen of projects the filament choke appears to be bare wires around the ferrite rod. Am I seeing this c; /archives//html/Amps/2004-09/msg00289.html (7,900 bytes)
5. Re: [AMPS] floating a filament transformer (score: 1): Author: "Phil Clements" <philk5pc@tyler.net>; Date: Fri, 17 Sep 2004 10:55:08 -0500; I have been reading with interest about the filament chokes for 3-500Z, etc. In the photos I've seen of projects the filament choke appears to be bare wires around the ferrite rod. Am I seeing this c; /archives//html/Amps/2004-09/msg00290.html (8,207 bytes)
6. Re: [AMPS] floating a filament transformer (score: 1): Author: R.Measures <r@somis.org>; Date: Fri, 17 Sep 2004 09:01:17 -0700; On Sep 17, 2004, at 8:26 AM, jsb@digistar.com wrote: On Thu, 16 Sep 2004, R.Measures wrote: the choke for the 3-500Zs would need to be wound with #8 gauge wire. I have been reading with interest abou; /archives//html/Amps/2004-09/msg00292.html (8,682 bytes)
7. Re: [AMPS] floating a filament transformer (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Fri, 17 Sep 2004 12:25:15 -0400; Jason, Those ferrite rods increase the inductance so a few number of turns can be used to create a choke to block the RF out of the heater supply. A toroid with similar properties can be used here to; /archives//html/Amps/2004-09/msg00293.html (8,804 bytes)
8. Re: [AMPS] floating a filament transformer (score: 1): Author: "carl seyersdahl" <carlseye@tampabay.rr.com>; Date: Fri, 17 Sep 2004 19:32:41 -0400; what would be the parameters for the toroid , for say , 8 or 10 amps , other than the size to accomodate the required wire size.??? carl / kz5ca -- Original Message -- From: "Phil Clements" <philk5pc; /archives//html/Amps/2004-09/msg00316.html (9,371 bytes)
9. Re: [AMPS] floating a filament transformer (score: 1): Author: Vic Rosenthal <vic@rakefet.com>; Date: Fri, 17 Sep 2004 17:17:04 -0700; carl seyersdahl wrote: what would be the parameters for the toroid , for say , 8 or 10 amps , other than the size to accomodate the required wire size.??? Type 61 ferrite should work on 160-10 meters; /archives//html/Amps/2004-09/msg00317.html (8,600 bytes)

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