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Re: FSL coil Q of 1162/46 and 660/46 Litz compared using HP4342A Q meter
Hi Steve,
Thanks for running these detailed "Q" tests between the 1162/46 and 660/46 Liz wire at various frequencies with the HP4342A Q meter. This kind of detailed test is something which would not
Hi Steve,
Thanks for running these detailed "Q" tests between the 1162/46 and 660/46 Liz wire at various frequencies with the HP4342A Q meter. This kind of detailed test is something which would not
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By
Gary DeBock
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#29578
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Re: FSL coil Q of 1162/46 and 660/46 (added 330/46) Litz compared using HP4342A Q meter
I wound a coil using 330/46 Litz to compare with the other two. 21 turns gave 273.3 uH, quite a bit higher than the other two due to the narrower width coil. Probably 1 or 2 turns should be
I wound a coil using 330/46 Litz to compare with the other two. 21 turns gave 273.3 uH, quite a bit higher than the other two due to the narrower width coil. Probably 1 or 2 turns should be
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By
Steve Ratzlaff
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#29577
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Re: FSL coil Q of 1162/46 and 660/46 Litz compared using HP4342A Q meter
I should add that my 140mm ferrite rods are Chinese rods, not Russian rods, and that the results may be different using Russian rods. I don't have enough Russian rods to do the experiment
I should add that my 140mm ferrite rods are Chinese rods, not Russian rods, and that the results may be different using Russian rods. I don't have enough Russian rods to do the experiment
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By
Steve Ratzlaff
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#29576
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FSL coil Q of 1162/46 and 660/46 Litz compared using HP4342A Q meter
This experiment compares a ferrite sleeve coil of 1162/46 Litz with a ferrite sleeve coil of 660/46, both 21 turns with final coil diameter about 6 3/8", using 140 mm ferrite rods in the
This experiment compares a ferrite sleeve coil of 1162/46 Litz with a ferrite sleeve coil of 660/46, both 21 turns with final coil diameter about 6 3/8", using 140 mm ferrite rods in the
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By
Steve Ratzlaff
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#29575
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Re: Gary's New 6" FSL Design
Thanks Gary for the detailed response.
When endeavoring to obtain the highest resonant signal output at a given frequency, the Q needs to be high as practicable. The audio fidelity will be somewhat
Thanks Gary for the detailed response.
When endeavoring to obtain the highest resonant signal output at a given frequency, the Q needs to be high as practicable. The audio fidelity will be somewhat
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By
Todd
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#29574
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KGB 760
Call change is logged on my little Sangean DT160. Heard spot for San Diego Honda dealers and promo for Mark Larson Show. 0800 PDT top of hour call letter ID read very quickly then into CBS news.
Call change is logged on my little Sangean DT160. Heard spot for San Diego Honda dealers and promo for Mark Larson Show. 0800 PDT top of hour call letter ID read very quickly then into CBS news.
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By
Mike Sanburn
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#29573
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Re: Gary's New 6" FSL Design
<<< Hi Gary,
Your new 6 inch FSL is a step towards higher gain in a relatively small package. I look forward to a YouTube review. >>>
Thanks Todd,
The master plan behind this new 6" FSL design was
<<< Hi Gary,
Your new 6 inch FSL is a step towards higher gain in a relatively small package. I look forward to a YouTube review. >>>
Thanks Todd,
The master plan behind this new 6" FSL design was
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By
Gary DeBock
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#29572
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Re: Soldering Litz Wire Method
Thanks for saying what I was thinking!
Isn't this just a variation to the solder pot?
73,
kevin
kc6pob
Thanks for saying what I was thinking!
Isn't this just a variation to the solder pot?
73,
kevin
kc6pob
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By
kevin asato
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#29571
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Re: Soldering Litz Wire Method
Great post and interesting comment on the wife finding the spoon, I think some might prefer we were doing drugs and not playing radios.
Great post and interesting comment on the wife finding the spoon, I think some might prefer we were doing drugs and not playing radios.
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By
Paul Blundell
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#29570
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Soldering Litz Wire Method
Just a comment about soldering litz wire after seeing Gary's comment
about a 65 watt iron..
I have a had success using a stainless steel spoon set on a burner of
the stove.
You will probably need
Just a comment about soldering litz wire after seeing Gary's comment
about a 65 watt iron..
I have a had success using a stainless steel spoon set on a burner of
the stove.
You will probably need
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By
lamontcranston17
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#29569
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Re: Long Term DX Project - 27/06/2020
Ah ok. Iv'e been hearing 4QL from Longreach coming in at night lately. I'll listen in during the day.
Ah ok. Iv'e been hearing 4QL from Longreach coming in at night lately. I'll listen in during the day.
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By
Dan Merta
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#29568
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Long Term DX Project - 1/07/2020
Date: 1/07/2020
Time: 19:30
Location: Home, Launceston Tasmania
Notes: Early evening session at home.
Date: 1/07/2020
Time: 19:30
Location: Home, Launceston Tasmania
Notes: Early evening session at home.
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By
Paul Blundell
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#29567
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Re: Gary's New 6" FSL Design
On Thu, Jul 2, 2020 at 08:09 AM, Gord Seifert wrote:
Hi guys. I am mainly a lurker here but this post forces me to ask a question. If the Q of the 1162 strand Litz is bordering on too high, why not
On Thu, Jul 2, 2020 at 08:09 AM, Gord Seifert wrote:
Hi guys. I am mainly a lurker here but this post forces me to ask a question. If the Q of the 1162 strand Litz is bordering on too high, why not
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By
Gary DeBock
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#29566
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Re: Gary's New 6" FSL Design
Hi guys. I am mainly a lurker here but this post forces me to ask a question. If the Q of the 1162 strand Litz is bordering on too high, why not use 660? The price of 100 ft. of 660 is about the same
Hi guys. I am mainly a lurker here but this post forces me to ask a question. If the Q of the 1162 strand Litz is bordering on too high, why not use 660? The price of 100 ft. of 660 is about the same
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By
Gord Seifert
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#29565
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Gary's New 6" FSL Design
Hi Gary,
Your new 6 inch FSL is a step towards higher gain in a relatively small package. I look forward to a YouTube review.
Regarding 1162/46 Litz wire used in the 6" FSL, what is the cheapest
Hi Gary,
Your new 6 inch FSL is a step towards higher gain in a relatively small package. I look forward to a YouTube review.
Regarding 1162/46 Litz wire used in the 6" FSL, what is the cheapest
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By
Todd
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#29564
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Re: Long Term DX Project - 27/06/2020
Nope, 7SD still going.
By
Paul Blundell
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#29563
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Re: Demo of my newly constructed 3.5" FSL
That is a very good idea, I will try the same with mine.
That is a very good idea, I will try the same with mine.
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By
Paul Blundell
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#29562
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Re: Demo of my newly constructed 3.5" FSL
On Tue, Jun 30, 2020 at 10:26 PM, Gary DeBock wrote:
Congratulations again on your success, and good luck tracking down lots of DX!Thank you Gary! It's a great way to practice the hobby anywhere.
Best
On Tue, Jun 30, 2020 at 10:26 PM, Gary DeBock wrote:
Congratulations again on your success, and good luck tracking down lots of DX!Thank you Gary! It's a great way to practice the hobby anywhere.
Best
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By
Chuck
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#29561
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Re: Long Term DX Project - 27/06/2020
2CA 1053 kHz has been coming into Melb well too lately.
I take it 540 kHz 7SD has been shut down then.
Regards. Dan.
2CA 1053 kHz has been coming into Melb well too lately.
I take it 540 kHz 7SD has been shut down then.
Regards. Dan.
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By
Dan Merta
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#29560
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Re: Demo of my newly constructed 3.5" FSL
Paul,
The solution is a "rubber locking tab," which is precut on one side to fit around the curved PVC fitting, and cut flat on the other side to fit up against the rubber plumbing coupler. The rubber
Paul,
The solution is a "rubber locking tab," which is precut on one side to fit around the curved PVC fitting, and cut flat on the other side to fit up against the rubber plumbing coupler. The rubber
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By
Gary DeBock
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#29559
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