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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Filter\s*$/: 8 ]

Total 8 documents matching your query.

1. [Amps] Filter (score: 1): Author: andromeda@seanet.com (Dennis Watkins); Date: Mon, 12 Aug 2002 12:22:31 -0700; Is it necessary to use a bifilar winding choke (for GG amp) for filament or can two separate ferrite rods be used?? Dennis W7JX; /archives//html/Amps/2002-08/msg00118.html (7,362 bytes)
2. [Amps] Filter (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Mon, 12 Aug 2002 16:29:04 -0500; Winding should be bifilar, but donut style can be used as well as rods. (((73))) Phil, K5PC; /archives//html/Amps/2002-08/msg00119.html (7,624 bytes)
3. [Amps] Filter (score: 1): Author: andromeda@seanet.com (Dennis Watkins); Date: Mon, 12 Aug 2002 15:22:51 -0700; Why bifilar???; /archives//html/Amps/2002-08/msg00120.html (7,883 bytes)
4. [Amps] Filter (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Mon, 12 Aug 2002 18:02:12 -0500; Bifilar is the BEST choke to use in the filament circuit for the following reasons: 1. The ferrite core raises the inductive reactance throughout the HF region so that a minimum of wire is needed, ke; /archives//html/Amps/2002-08/msg00121.html (8,357 bytes)
5. [Amps] Filter (score: 1): Author: wb8jkr@juno.com (wb8jkr@juno.com); Date: Mon, 12 Aug 2002 19:54:40 -0400; I think bifilar winding also allows the 60 Hz current to cancel in the core. Mark WB8JKR On Mon, 12 Aug 2002 15:22:51 -0700 Dennis Watkins <andromeda@seanet.com> writes: _____________________________; /archives//html/Amps/2002-08/msg00122.html (8,653 bytes)
6. [Amps] Filter (score: 1): Author: 2@vc.net (2); Date: Mon, 12 Aug 2002 17:27:24 -0700; Two separate rods can be used. - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, www.vcnet.com/measures. end; /archives//html/Amps/2002-08/msg00123.html (7,921 bytes)
7. [Amps] Filter (score: 1): Author: erkoehl@attbi.com (Koehl_House); Date: Mon, 12 Aug 2002 19:52:49 -0500; Not 60 Hz...the signal frequency is canceled and choked and finally grounded at the filament supply end. Separate rods will provide the choking action but not the cancellation. IMHO Dick K9FFK; /archives//html/Amps/2002-08/msg00125.html (10,001 bytes)
8. [Amps] Filter (score: 1): Author: wlfuqu00@uky.edu (William Fuqua); Date: Tue, 13 Aug 2002 16:39:12 -0400; You may get 120 Hz modulation of your signal if you don't use bifilar windings. The large 60Hz current may modulate the permeability of the ferrite (or even saturate it) and produce a modulated imped; /archives//html/Amps/2002-08/msg00127.html (8,741 bytes)

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