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21. [Amps] Cheap FET amps (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Fri, 7 Jan 2005 22:55:38 +0000; Peter, Are any of your designs published or on the web? -- Philip de Cadenet G4ZOW Transmitters 'R' Us http://www.transmittersrus.com _______________________________________________ Amps mailing list; /archives//html/Amps/2005-01/msg00110.html (6,330 bytes)
22. [Amps] Amplifuzz (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Thu, 27 Jan 2005 17:45:42 +0000; Skipp, I searched PhaseX on Yahoo Groups and it came up zilch. Can you post the group URL? Tnx -- Philip de Cadenet G4ZOW Transmitters 'R' Us http://www.transmittersrus.com __________________________; /archives//html/Amps/2005-01/msg00535.html (6,791 bytes)
23. [Amps] Amplifuzz (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Sat, 29 Jan 2005 08:39:54 +0000; Carl, Here's a couple of pages off one of the Radio Caroline sites that talks about these RCA rigs: http://www.rossrevenge.co.uk/tx/antho.htm http://www.rossrevenge.co.uk/tx/ampli.htm Other pages fro; /archives//html/Amps/2005-01/msg00558.html (7,175 bytes)
24. [Amps] Amplifuzz (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Sat, 29 Jan 2005 09:01:55 +0000; Tom, Still no sign of the NPWM group, at least not on Yahoo, Google or MSN. Can you point us to it please? Tnx -- Philip de Cadenet G4ZOW Transmitters 'R' Us http://www.transmittersrus.com __________; /archives//html/Amps/2005-01/msg00562.html (6,992 bytes)
25. [Amps] Class E and MRF492 (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Tue, 8 Mar 2005 17:52:02 +0000; They are suited for single-frequency operation. The difference between 60% efficiency and 90% efficiency with the same input power is 0.3 S-unit or 1.76db. ... but surely that also means smaller PA h; /archives//html/Amps/2005-03/msg00222.html (6,477 bytes)
26. Re: [Amps] Class E and MRF492 (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Wed, 9 Mar 2005 12:27:13 +0000; I of course agree. Class-D is the way to go. Regards -- Philip de Cadenet Transmitters 'R' Us http://www.transmittersrus.com _______________________________________________ Amps mailing list Amps@co; /archives//html/Amps/2005-03/msg00228.html (7,009 bytes)
27. [Amps] Transistor amp's (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Tue, 29 Mar 2005 19:05:59 +0100; I believe that a 'people's amplifier' could be developed using the APT MOSFETs that would incorporate the power supply, protection, biasing, and filtering that's needed for a practical unit that coul; /archives//html/Amps/2005-03/msg00692.html (7,061 bytes)
28. [Amps] Even more power solid-state amp's (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Thu, 31 Mar 2005 12:37:21 +0100; In case anyone's never seen the very nice products from Beko: http://www.beko.cc/default_english.htm Trust the German's to show the rest how it's supposed to be done. -- Philip de Cadenet G4ZOW Trans; /archives//html/Amps/2005-03/msg00739.html (7,125 bytes)
29. [Amps] Solid State Amps (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Fri, 1 Apr 2005 09:29:35 +0100; Will & others, In case you don't know already these people make impedance matching transformers for CCI: www.rfpowersystems.com Out in AZ. -- Philip de Cadenet G4ZOW Transmitters 'R' Us http://www.tr; /archives//html/Amps/2005-04/msg00004.html (7,130 bytes)
30. [Amps] Mine is bigger than yours (was: Re: Standby tubes (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Sun, 3 Apr 2005 20:04:02 +0100; Pete, It's been done. I'll try and get the gentleman concerned to pop in and tell you about the 500Kw Radio Nigeria SW TX which I think he keyed up on either 40 or 20m. Steerable curtain array. He di; /archives//html/Amps/2005-04/msg00060.html (7,288 bytes)
31. [Amps] Transistor amp's (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Wed, 6 Apr 2005 17:38:46 +0100; Bill, Those Harris modules use inexpensive switching FET's, probably IRF series. The problem is, you're not going to see much out of them on 10m! However, I do know someone using them on the FM broad; /archives//html/Amps/2005-04/msg00129.html (6,443 bytes)
32. [Amps] FA: Various items inc QRO (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Fri, 10 Jun 2005 08:19:31 +0100; Forgot to let the brain trust know of my 'clear out'. http://search.ebay.co.uk/_W0QQsassZphilstheboss Good luck should you decide to bid. -- Philip de Cadenet G4ZOW Transmitters 'R' Us http://www.tra; /archives//html/Amps/2005-06/msg00063.html (6,437 bytes)
33. [Amps] Mobile amp's (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Fri, 22 Jul 2005 11:47:30 +0100; Will, Are you doing any work in broadbanding, gain levelling and filtering to allow use over all the HF bands? I'm aware this is quite involved but interested to know your capabilities there. -- Phil; /archives//html/Amps/2005-07/msg00253.html (6,525 bytes)
34. [Amps] Mobile high power (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Thu, 27 Oct 2005 17:29:39 +0100; Dick, I'd come across that site and it's listed in my favourites. I know there are lurkers, and some posters to this reflector who indeed have high power mobile experience, far more than myself. Rath; /archives//html/Amps/2005-10/msg00626.html (7,684 bytes)
35. Re: [Amps] Mobile high power (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Mon, 31 Oct 2005 12:17:30 +0000; Bill, You're correct of course. However it's currently only a few top end cars, BMW and the like with 36v systems I believe fir their HID lighting circuits etc. I think it will be quite some years un; /archives//html/Amps/2005-10/msg00713.html (9,633 bytes)
36. Re: [Amps] Mobile high power (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Mon, 31 Oct 2005 15:50:58 +0000; That's not fair. You would go and pick a damn hybrid wouldn't you Rich:-) Is that charge controller EMC certified? -- Philip de Cadenet G4ZOW Transmitters 'R' Us http://www.transmittersrus.com _____; /archives//html/Amps/2005-10/msg00719.html (9,303 bytes)
37. [Amps] 2Kw s/s (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Sun, 20 Nov 2005 18:02:57 +0000; Bill, 1. A suitable power transformer for 50 VDC 50 A output. 2. The output filtering and matching network for all HF band operation. 48v @ 50A SMPS's are off the shelf these days. I really don't kno; /archives//html/Amps/2005-11/msg00379.html (6,890 bytes)
38. [Amps] Amps for the other band (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Mon, 20 Feb 2006 13:36:43 +0000; Will, You must be talking about an old friend of mine in Oklahoma, Abe Brewer of Brewer Labs. I can safely say I purchased the very first 8-device amp from his company that was imported to the UK bac; /archives//html/Amps/2006-02/msg00358.html (6,900 bytes)
39. [Amps] Ferrites for Dan (score: 1): Author: Philip de Cadenet <phil@transmittersrus.com>; Date: Sun, 12 Mar 2006 13:04:15 +0000; Dan, I posted this web address around a year ago which you may of missed. These people supply CCI with their transformers: http://www.rfpowersystems.com/ Enjoy -- Philip de Cadenet G4ZOW Transmitters; /archives//html/Amps/2006-03/msg00285.html (6,834 bytes)

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