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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Silver\s+Plated\s+Conductor\s*$/: 14 ]

Total 14 documents matching your query.

1. Topband: Silver Plated Conductor (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Mon, 19 Nov 2007 22:42:53 -0500
Dear Group Member, I have a question regrading the importance of silver plating inductor wire in high power TX circuits in the HF bands. I am just rebuilding my antenna tuner ahead of the 160m ARRL c
/archives//html/Topband/2007-11/msg00160.html (7,252 bytes)

2. Topband: Silver Plated Conductor (score: 1)
Author: Dennis OConnor <ad4hk2004@yahoo.com>
Date: Tue, 20 Nov 2007 04:23:45 -0800 (PST)
Silver plating might <emphasize 'might'> make a difference on 10 meters, other than that, forget it... If you are determined to make a difference, then replace that wimpy wire with quarter inch coppe
/archives//html/Topband/2007-11/msg00161.html (6,868 bytes)

3. Re: Topband: Silver Plated Conductor (score: 1)
Author: K4SAV <RadioIR@charter.net>
Date: Tue, 20 Nov 2007 18:54:56 -0600
Before you consider silver plating a coil, here is something you should know. At 2 MHz the RF skin depth in silver is 0.00178 inches. You need about three skin depths of plating, that's about 0.0053
/archives//html/Topband/2007-11/msg00163.html (7,287 bytes)

4. Re: Topband: Silver Plated Conductor (score: 1)
Author: "LA5HE Ragnar Otterstad" <la5he@otterstad.dk>
Date: Wed, 21 Nov 2007 12:53:19 +0100
Before you consider silver plating a coil, here is something you should know. At 2 MHz the RF skin depth in silver is 0.00178 inches. You need about three skin depths of plating, that's about 0.0053
/archives//html/Topband/2007-11/msg00165.html (8,292 bytes)

5. Re: Topband: Silver Plated Conductor (score: 1)
Author: Joe Craig <jcraig@mun.ca>
Date: Wed, 21 Nov 2007 08:38:38 -0330 (NST)
It also prevents oxidation of the copper, but I'm not sure how significant an improvement this will be in terms of Q. Joe VO1NA _______________________________________________ Topband mailing list To
/archives//html/Topband/2007-11/msg00166.html (7,690 bytes)

6. Re: Topband: Silver Plated Conductor (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Wed, 21 Nov 2007 07:37:16 -0500
Surface corrosion or tarnish, unless it really eats away the conductor surface, has little effect. As was pointed out the skin depth of silver on 160 is about .0018 inches and even a very heavy plat
/archives//html/Topband/2007-11/msg00167.html (8,775 bytes)

7. Re: Topband: Silver Plated Conductor (score: 1)
Author: "Tod -ID" <tod@k0to.us>
Date: Wed, 21 Nov 2007 08:49:43 -0700
As I recall 1 micron is 40 microinches [OK 39.39 microinches]. That would mean a 2 micron layer is 80 microinches or 0.00008 inches - about 50 times less than the "Highly polish-able" grade silver p
/archives//html/Topband/2007-11/msg00170.html (9,360 bytes)

8. Re: Topband: Silver Plated Conductor (score: 1)
Author: "Michael Tope" <W4EF@dellroy.com>
Date: Wed, 21 Nov 2007 08:30:13 -0800
80 to 120 microinches in "medieval" terms, Rag. Silver oxide is a pretty good conductor whereas copper oxide is not. Not sure what if any Q change is associated with a pristine bare copper HF coil vs
/archives//html/Topband/2007-11/msg00172.html (9,931 bytes)

9. Re: Topband: Silver Plated Conductor (score: 1)
Author: "Bob Eldridge" <eldridge@direct.ca>
Date: Wed, 21 Nov 2007 10:16:42 -0800
If the coil doesn't heat up, there is no loss. Maybe for marine purposes the silver plating is corrosion protection. Bob VE7BS _______________________________________________ Topband mailing list To
/archives//html/Topband/2007-11/msg00173.html (7,977 bytes)

10. Topband: Silver Plated Conductor (score: 1)
Author: GEORGE WALLNER <gwallner@the-beach.net>
Date: Wed, 21 Nov 2007 18:56:09 -0500
Many thanks to those who have contributed ... The consensus was clearly that silver plating would not make a practical difference below 30 MHz, at least in the short term. In any case, I have moved f
/archives//html/Topband/2007-11/msg00177.html (8,218 bytes)

11. Re: Topband: Silver Plated Conductor (score: 1)
Author: "Dan Zimmerman N3OX" <n3ox@n3ox.net>
Date: Wed, 21 Nov 2007 19:55:50 -0700
"To get an idea of "what a difference a dB makes", download a copy of Audacity [a free program] and install it. Then take a .wav file and listen to it for a brief period. Next reduce the audio playba
/archives//html/Topband/2007-11/msg00178.html (8,765 bytes)

12. Re: Topband: Silver Plated Conductor (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Wed, 21 Nov 2007 21:47:11 -0800
The better test is to RAISE the signal by one dB after you've buried it in the noise. Those of us working in pro audio have learned that changes of a dB or so in the level of a signal that is near th
/archives//html/Topband/2007-11/msg00181.html (8,716 bytes)

13. Re: Topband: Silver Plated Conductor (score: 1)
Author: Niko Cimbur <ac6dd@yahoo.com>
Date: Thu, 22 Nov 2007 11:25:23 -0800 (PST)
I have been using Cool-Amp for projects involving Copper. It makes a copper coil look like a piece of jewelry (at least initially). I first saw it about 15 years ago, when some guys were plating grou
/archives//html/Topband/2007-11/msg00185.html (8,759 bytes)

14. Re: Topband: Silver Plated Conductor (score: 1)
Author: "Michael Tope" <W4EF@dellroy.com>
Date: Thu, 22 Nov 2007 15:56:06 -0800
It would be interesting to add fading into the mix. I am pretty convinced that 1dB can make or break a marginal QSO on 160 my thinking being that the extra 1dB increases the amount of time your signa
/archives//html/Topband/2007-11/msg00187.html (9,569 bytes)

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