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References: [ +from:felipeceglia2@gmail.com: 39 ]

Total 39 documents matching your query.

1. [Amps] MRF422 and MRF486 sources (score: 1)
Author: Felipe Ceglia <felipeceglia2@gmail.com>
Date: Sun, 21 Sep 2008 20:08:34 -0300
Hello folks, I am looking for MRF422 (orange dot) and MRF486. Could anyone suggest me a good source for them, beside rfparts. Maybe someone even have a unused NOS pair in his junkbox, hihi. 73 TU, Fe
/archives//html/Amps/2008-09/msg00185.html (6,527 bytes)

2. Re: [Amps] Alpha 9500 Versus ACOM 2000A (score: 1)
Author: Felipe Ceglia <felipeceglia2@gmail.com>
Date: Wed, 01 Oct 2008 23:17:41 -0300
Hi, A friend of mine has recently been fixing an ACOM amplifier, and their support was excellent. 73, Felipe - PY1NB _______________________________________________ Amps mailing list Amps@contesting.
/archives//html/Amps/2008-10/msg00004.html (8,335 bytes)

3. Re: [Amps] RG-223U (score: 1)
Author: Felipe Ceglia <felipeceglia2@gmail.com>
Date: Mon, 03 Nov 2008 08:33:25 -0200
Hi Tom, I've seen that on ebay recently. 73, Felipe - PY1NB _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2008-11/msg00017.html (6,997 bytes)

4. [Amps] 8877 TV amplifier retrofit (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Wed, 28 Jan 2009 09:11:02 -0200
Hello folks, I have in hands a TV amplifier which uses an 8877 tube which I'd like to convert it for 144Mhz. Unfortunately I dont know what the original frequency is, and which parts I can use for th
/archives//html/Amps/2009-01/msg00327.html (7,427 bytes)

5. Re: [Amps] Sweep tube amp by DL9AH, made by HB9AWI (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Sat, 27 Jun 2009 07:37:56 -0300
Hi Angel, I one recent CQ DL magazine, may 2009 (the one with the CW op YL on cover), there is a project for a funf-tube PL519 amplifier. If I recall it correctly it does not use a HV trafo, but for
/archives//html/Amps/2009-06/msg00127.html (10,915 bytes)

6. [Amps] sk610a datasheet? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Mon, 26 Oct 2009 14:05:38 -0300
Hi, WOuld anyone here have the datasheet or specs for eimac's sk610a socket available? 73, -- Felipe Ceglia - PY1NB -- PR1T team member /// Rio DX Group member /// Araucaria DX Group member http://ww
/archives//html/Amps/2009-10/msg00326.html (6,789 bytes)

7. Re: [Amps] sk610a datasheet? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Mon, 26 Oct 2009 15:38:08 -0300
Hi, Thanks N7SC and Jerry, who sent me the datasheet. 73 tu, Felipe -- Felipe Ceglia - PY1NB -- PR1T team member /// Rio DX Group member /// Araucaria DX Group member http://www.dxwatch.com /// http:
/archives//html/Amps/2009-10/msg00327.html (7,221 bytes)

8. [Amps] 2x 4cx1500b amp (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Mon, 30 Nov 2009 11:57:13 -0200
Hello "Ampers", I am willing to build a 2x 4CX1500B amp for 160 to 10m usage. Willing to use a GM3SEK tetrode board for controlling and protecting it. As I will need to special order the HV supply tr
/archives//html/Amps/2009-11/msg00300.html (6,934 bytes)

9. Re: [Amps] 2x 4cx1500b amp (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Mon, 30 Nov 2009 22:28:47 -0200
Hi folks, Thank you for the replies you sent me. Regarding the HV transformer, some things that I could gather from your replies: - not use a center tap on the secondary - look for hypersil or other
/archives//html/Amps/2009-11/msg00320.html (9,137 bytes)

10. [Amps] transformer duty cycle (score: 1)
Author: Felipe Ceglia <felipeceglia2@gmail.com>
Date: Tue, 8 Dec 2009 20:01:11 -0200
Hi Folks, While making price quotations for the transformer for y 2 4cx1500b amp, the guys often asked me what its duty cycle would be. I dont know what exactly this changes in a transformer, but I i
/archives//html/Amps/2009-12/msg00235.html (7,019 bytes)

11. [Amps] OM power power supply design (score: 1)
Author: Felipe Ceglia <felipeceglia2@gmail.com>
Date: Wed, 9 Dec 2009 09:01:14 -0200
Hi guys, Still regarding my own project.. As the first quote was a bit too salty, I started thinking about alternatives... Last night I came across these schematics from OM Power. They use 8 250v win
/archives//html/Amps/2009-12/msg00244.html (6,926 bytes)

12. Re: [Amps] OM power power supply design (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Fri, 11 Dec 2009 07:08:53 -0200
Hi again folks, As I should have expected, there would be no free lunch on this. Thank you for your opinions! 73, Felipe - PY1NB Felipe Ceglia wrote: _______________________________________________ A
/archives//html/Amps/2009-12/msg00295.html (9,351 bytes)

13. [Amps] which HV connector to use? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Tue, 12 Jan 2010 18:17:01 -0200
Hi, I need to choose a connector for plug the HV power supply to RF deck. Which one to choose? Is the amphenol ms-3106a-2817s a good idea? This one has 15 pins, and is used on harris RF-110 to connec
/archives//html/Amps/2010-01/msg00101.html (7,739 bytes)

14. Re: [Amps] which HV connector to use? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Wed, 13 Jan 2010 07:58:40 -0200
Hi folks, Thank you for the plethora of emails you sent me. I got a little scared the prices I've seen for those connectors, ebay and around. I have tried SO-239 connectors once, good quality, and th
/archives//html/Amps/2010-01/msg00135.html (11,020 bytes)

15. Re: [Amps] [CQ-Contest] K3 KIT PICTURES? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Sun, 17 Jan 2010 21:29:10 -0200
Thanks for all you who sent pictures of the kit! 73, Felipe -- Felipe Ceglia - PY1NB -- PR1T team member /// Rio DX Group member /// Araucaria DX Group member http://www.dxwatch.com /// http://revers
/archives//html/Amps/2010-01/msg00249.html (7,852 bytes)

16. Re: [Amps] [CQ-Contest] K3 KIT PICTURES? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Sun, 17 Jan 2010 22:20:11 -0200
Ops! sent it to the wrong list! sorry! -- Felipe Ceglia - PY1NB -- PR1T team member /// Rio DX Group member /// Araucaria DX Group member http://www.dxwatch.com /// http://reversebeacon.net /// http:
/archives//html/Amps/2010-01/msg00250.html (7,691 bytes)

17. [Amps] soft start, how to determine if needed? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Tue, 23 Feb 2010 10:34:04 -0300
Hi folks, Regarding this recurring topic about soft starting... How can one determine if it is needed or not? Should HV be soft-started as well? What would be the best math to determine the soft-star
/archives//html/Amps/2010-02/msg00685.html (7,329 bytes)

18. Re: [Amps] soft start, how to determine if needed? (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Wed, 24 Feb 2010 09:21:39 -0300
Folks, Thank you for your replies. Is there a way to calculate what R values and relay contact Amp rate should I need? Also, if the primary is feed with 110+110 volts, I should use one R on each prim
/archives//html/Amps/2010-02/msg00717.html (12,808 bytes)

19. [Amps] importing OM power amp to the US (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Tue, 04 May 2010 08:35:36 -0300
Dear QROers, A friend of mine, which is going to Dayton, would like to buy an OM Power 3500 amp to be delivered in the US. Being this amp not FCC approved, would it be possible to import it or would
/archives//html/Amps/2010-05/msg00049.html (7,525 bytes)

20. Re: [Amps] Uruguay Amp Project (score: 1)
Author: Felipe Ceglia - PY1NB <felipeceglia2@gmail.com>
Date: Fri, 07 May 2010 09:48:34 -0300
Hi, This is not a CX privilege. Here in Brazil we have the same problem. You cant just browse a website and ask for something you need. If items are heavy and expensive, its a budget nightmare to bri
/archives//html/Amps/2010-05/msg00089.html (10,799 bytes)

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