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Total 24 documents matching your query.

1. [Amps] testmail (score: 1)
Author: " LA7SL-Nils P. Pedersen" <la7sl@norgespost.no>
Date: Sun, 6 Dec 2009 16:48:39 +0100
testmail _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-12/msg00163.html (6,118 bytes)

2. Re: [Amps] Tesla Effect - what the heck is that? (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Sun, 31 Jan 2010 17:04:50 +0100
http://en.wikipedia.org/wiki/Wireless_energy_transfer explanation should be found in this chapter on Wikipedia...at least for what is commonly named the Tesla effect. ________________________________
/archives//html/Amps/2010-01/msg00575.html (7,833 bytes)

3. Re: [Amps] QRO Questions (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Fri, 5 Feb 2010 21:11:30 +0100
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-02/msg00125.html (9,587 bytes)

4. Re: [Amps] QRO Questions (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Fri, 5 Feb 2010 21:44:21 +0100
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-02/msg00128.html (11,441 bytes)

5. Re: [Amps] winding xformer (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 8 Feb 2010 00:37:00 +0100
http://www.rale.ch/ Professional software...but you NEED that to make a good transformer !!! It is a lot more complicated than most people here think.... Good transformer design is expert work. Trial
/archives//html/Amps/2010-02/msg00210.html (7,963 bytes)

6. Re: [Amps] winding xformer (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 8 Feb 2010 00:55:25 +0100
However..... I should advice you that this software has a price tag :-) abt 3800 USD /year for single user.... but the online free trial version (15 days) works just fine for your project ! Peter --
/archives//html/Amps/2010-02/msg00211.html (8,421 bytes)

7. Re: [Amps] cap sizes (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 8 Feb 2010 13:02:09 +0100
Just a warning : Photoflash capacitors are not intended for PSU applications They will generally not withstand the high ripple currents involved in a power supply under load conditions... Overheating
/archives//html/Amps/2010-02/msg00227.html (9,656 bytes)

8. [Amps] best choice HV caps..if you can find them (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 8 Feb 2010 13:52:36 +0100
The best choice you can make when it comes to HV filter caps are the MP types. These are made from either metalized paper (old types) or some sort of metalized plastic foil stacked or rolled up to pr
/archives//html/Amps/2010-02/msg00230.html (7,782 bytes)

9. [Amps] OM-2500 strange protect (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 15 Feb 2010 17:34:26 +0100
Hello ! Our OM-2500HF has developed a strange problem today. I can switch on,- tune it OK and put it on the air. No problems. BUT as soon as I take a little brake...say 2-3 minutes QRT leaving the am
/archives//html/Amps/2010-02/msg00406.html (6,899 bytes)

10. [Amps] Fw: Revamping a really ugly amp (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Sat, 13 Mar 2010 22:25:35 +0100
Hmmm.... a stepmotor, a controller and a rotary switch is a better idea !! (remove that "click" thing :-) ) And probably less expensive.... I would not try cheap relays !! Vacuum could work...but wo
/archives//html/Amps/2010-03/msg00210.html (11,054 bytes)

11. Re: [Amps] PTFE dielectricum variable cap (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 15 Mar 2010 22:12:36 +0100
I tried to make a fixed padding (parallell) cap for 160 plate circuit ( PI ) using a stack of brass/ptfe/brass etc connecting together every second layer. It was finally pressed together by means of
/archives//html/Amps/2010-03/msg00280.html (9,674 bytes)

12. Re: [Amps] PTFE dielectricum variable cap (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 15 Mar 2010 22:27:15 +0100
On the other side : I have also used PTFE as dielectricum in the plate coupling cap in a 4CX250B amp with a 1/4 coaxial plate circuit...No problems with that one...on 144 Mhz ! Points toward poor pol
/archives//html/Amps/2010-03/msg00281.html (7,453 bytes)

13. Re: [Amps] placement of RF choke bypass cap. (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Thu, 25 Mar 2010 12:08:07 +0100
Hi ! I have not followed this discussion closely... But I have always believed that electrical currents can and will be following any conductor...regardless of frequency... And YES..I do know about s
/archives//html/Amps/2010-03/msg00603.html (12,026 bytes)

14. Re: [Amps] Semtech SA1388? (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Wed, 31 Mar 2010 22:38:42 +0200
Semtech has produced a component numbered SA1388-1- at least for military purposes. I found a report named : Corrosion of SA1388-1 Diodes Carol Krska and Chuck Stimetz Allied Signal - FM&T Jeff Brait
/archives//html/Amps/2010-03/msg00961.html (9,304 bytes)

15. Re: [Amps] Semtech SA1388? (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Wed, 31 Mar 2010 22:51:01 +0200
all I know about these diodes is that they have 1 pA leakage current specification (at 480 volts) This is evident from the mentioned document. that is found at : http://www.osti.gov/bridge/purl.cover
/archives//html/Amps/2010-03/msg00966.html (10,504 bytes)

16. Re: [Amps] Semtech SA1388? (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Wed, 31 Mar 2010 23:03:53 +0200
Ok...trying the URL again : http://www.osti.gov/bridge/purl.cover.jsp;jsessionid=E28E62F04D0D77CD80287AEDC127193B?purl=/238346-hwOu9l/webviewable/ And you may be right Steve...this investigation cove
/archives//html/Amps/2010-03/msg00969.html (9,887 bytes)

17. Re: [Amps] TX site RFI and automobiles (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Wed, 31 Mar 2010 23:30:17 +0200
In Fredrikstad--a nearby city here,- there was a 500KW SW TX using a large logperiodic rotatable array. When they were beaming towards the road nearby - all kinds of strange things happened to cars p
/archives//html/Amps/2010-03/msg00972.html (9,966 bytes)

18. Re: [Amps] HV lytic max V ratings..some notes (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Tue, 13 Apr 2010 14:22:15 +0200
There are two updates to this document : MIL-HDBK-217F NOTICE 1 - 10 JULY 1992 MIL-HDBK-217F NOTICE 2 - 28 February 1995 Further to my email about MIL HDBK 217F: It is dated 1990, so, not as current
/archives//html/Amps/2010-04/msg00446.html (9,202 bytes)

19. [Amps] Suggested price Icom IC4KL (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Wed, 11 Aug 2010 17:18:50 +0200
Hello all ! I have a IC4KL for sale. Complete with additional ICOM-Yaesu converter so that it can be controlled also by any Yaesu rig. My question is : what is a reasonable price for this thing ?? Du
/archives//html/Amps/2010-08/msg00144.html (6,756 bytes)

20. Re: [Amps] 4-250A testing (score: 1)
Author: "la7sl Nils Petter" <la7sl@norgespost.no>
Date: Mon, 27 Sep 2010 23:37:29 +0200
He was referring to the sellers own description on how the tube was tested... He asked if this seemed OK. That is how I understand the question. The answer is : This is definitely not ok ! 6.3V 8 amp
/archives//html/Amps/2010-09/msg00334.html (11,989 bytes)


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