Return to KLUBNL.PL main page

Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Coil\s+winding\s+conundrum\s*$/: 6 ]

Total 6 documents matching your query.

1. LF: Coil winding conundrum (score: 1)
Author: "Talbot Andrew" <>
Date: Wed, 12 Apr 2000 13:48:41 +0100
Moving from LF to MF for a bit, here's a problem for the topband operators and loading coil winders. At the weekend I made a loading coil to resonate the LF Tee antenna on topband. 34uH was needed an
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-04/msg00124.html (10,986 bytes)

2. LF: Coil winding conundrum (score: 1)
Author: "Soegiono, Gamal" <>
Date: Wed, 12 Apr 2000 15:31:50 +0100
Hello Andy G4JNT G4JNT> Both coils were the same diameter, same inductance, and roughly No. Unless the "capacity" exhibits significant dielectric losses, great self capacitance does not harm in lieu
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-04/msg00126.html (10,108 bytes)

3. Re: LF: Coil winding conundrum (score: 1)
Author: "vernall" <>
Date: Thu, 13 Apr 2000 09:01:29 +1200
Talbot Andrew wrote: snip snip Now for the interesting bit. When it came to measure the unloaded Q of each coil, the original one was a fair bit higher at Qu = 140, compared with the Litz wound coil
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-04/msg00138.html (9,761 bytes)

4. Re: LF: Coil winding conundrum (score: 1)
Author: "Peter Dodd" <>
Date: Wed, 12 Apr 2000 21:19:05 +0100
the same length in total. So why was the one made of plain wire better ? Self capacitance ? Gamal> No. Unless the "capacity" exhibits significant dielectric losses, great self capacitance does not h
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-04/msg00141.html (10,742 bytes)

5. Re: LF: Coil winding conundrum (score: 1)
Author:
Date: Thu, 13 Apr 2000 01:47:52 +0000
Hi All, Very interesting discussion re coil Q - not certain of the true reason for the effect, but note that the quest for higher Q was because the original coil was warming up. Would not increasing
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-04/msg00146.html (9,146 bytes)

6. Re: LF: Coil winding conundrum (score: 1)
Author: "Tom Boucher" <>
Date: Thu, 13 Apr 2000 10:46:43 +0100
Surely if the Litz coil Q was lower, it will run warmer? 73, Tom G3OLB 73, Bob ZL2CA
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-04/msg00155.html (8,826 bytes)


This search system is powered by Namazu