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Total 40 documents matching your query.

21. Re: [Amps] Dentron MLA-2500 (score: 1)
Author: "Peter Frenning, OZ1PIF" <oz1pif@privat.dk>
Date: Sun, 16 Jan 2005 18:38:37 +0100
Al, I would take a good long look at this one: http://www5a.biglobe.ne.jp/~jh2clv/gu74b2mmaking.htm A very neat and clean plate circuit design (I'm currently trying to do one like it) - only draw-bac
/archives//html/Amps/2005-01/msg00305.html (10,942 bytes)

22. [Amps] Re: GU-74B 2m POWER Amplifire Making (score: 1)
Author: "Peter Frenning, OZ1PIF" <oz1pif@privat.dk>
Date: Tue, 18 Jan 2005 20:12:16 +0100
Thanks Jan, but have you tried to actually read it? The words are english but seemingly picked at random - at least my knowledge of the english language is not up to the task of decoding this. Vy 73
/archives//html/Amps/2005-01/msg00353.html (7,936 bytes)

23. Re: [Amps] nylons (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Tue, 15 Mar 2005 10:24:24 +0100
Point well taken David - Obvious solution: Grab a pice of the material under investigation, place it in plate compartment of a working amplifier at the frequency of interest, and run it at full song
/archives//html/Amps/2005-03/msg00336.html (15,543 bytes)

24. Re: [Amps] Transistor amp's (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Wed, 6 Apr 2005 23:05:17 +0200
I have in fact built a 500W 50MHz amp using 16xIRF410, they have about 15dB gain at 40V supply, and are relatively clean in AB1 Vy 73 de OZ1PIF, Peter ** OZ1PIF ** email: oz1pif(no-spam-filler)@priva
/archives//html/Amps/2005-04/msg00130.html (8,193 bytes)

25. Re: [Amps] Transistor amp's (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Thu, 7 Apr 2005 12:03:27 +0200
Oooooooooops: I just noticed that my fingers wrote IRF410, I meant to write IRF510 of cause... Vy 73 de OZ1PIF, Peter ** OZ1PIF ** email: oz1pif(no-spam-filler)@privat.dk http://home24.inet.tele.dk/o
/archives//html/Amps/2005-04/msg00136.html (10,589 bytes)

26. Re: [Amps] Transistor amp's (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Thu, 7 Apr 2005 14:49:47 +0200
Bias is 500mA pr module; IMD3 has not been measured, but reports on the band have been uniformly good. More than 2000 QSOs have been made so far with this amp. Only mishap was during an F2 opening to
/archives//html/Amps/2005-04/msg00140.html (14,172 bytes)

27. Re: [Amps] 500w Amplifier With 510's (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Thu, 7 Apr 2005 16:25:40 +0200
500w Amplifier With 510'sI have so many requests for information, that I'll try to put something on my homepage tonight. Vy 73 de OZ1PIF, Peter ** OZ1PIF ** email: oz1pif(no-spam-filler)@privat.dk ht
/archives//html/Amps/2005-04/msg00142.html (7,591 bytes)

28. [Amps] 500w Amplifier With IRF510's - Description now available on myhomepage (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Thu, 7 Apr 2005 22:49:46 +0200
With PCB-design, Schematic and pictures plus some commentary: http://home24.inet.tele.dk/oz1pif/50MHz_IRF510.htm Vy 73 de OZ1PIF, Peter ** OZ1PIF ** email: oz1pif(no-spam-filler)@privat.dk http://hom
/archives//html/Amps/2005-04/msg00147.html (7,453 bytes)

29. [Amps] Re.: 500w Amplifier With IRF510's - Schematic updated (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Fri, 8 Apr 2005 07:23:27 +0200
Some errors in the schematic corrected.. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2005-04/msg00151.html (7,185 bytes)

30. Re: [Amps] Re.: 500w Amplifier With IRF510's - Schematic updated (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Fri, 8 Apr 2005 12:10:10 +0200
I can only support Steve in this, although all I have tested have been within 0.1V of each other (from three different batches) Vy 73 de OZ1PIF, Peter ** OZ1PIF ** email: oz1pif(no-spam-filler)@priva
/archives//html/Amps/2005-04/msg00158.html (9,663 bytes)

31. [Amps] 500W IRF510 50MHz Amp design update (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Wed, 13 Apr 2005 11:13:40 +0200
A lot of information has been added/updated on the homepage. If you are seriously interested, check in regularly as it's being updated on an almost daily basis currently (due to the many email questi
/archives//html/Amps/2005-04/msg00243.html (6,989 bytes)

32. Re: [Amps] Metric system (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Fri, 5 Aug 2005 19:59:26 +0200
Just to stir the pot one more time... Didn't the US officially adopt the metric system by Congress resolution sometime in the 1980's? I distinctly remember the CA highway signs sporting Miles and Kms
/archives//html/Amps/2005-08/msg00187.html (8,886 bytes)

33. Re: [Amps] PDF Files (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Mon, 3 Oct 2005 22:35:44 +0200
Even easier (for Windoze users) is this little program http://www.CutePDF.com which behaves like a printer, but outputs a pdf file rather than paper! It can thus be used from any program which can pr
/archives//html/Amps/2005-10/msg00095.html (8,589 bytes)

34. Re: [Amps] 2006 ARRL Handbook & personal vendettas (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Mon, 10 Oct 2005 00:08:26 +0200
Richard (Measures), Why don't you just keep your vendettas and personal fobies out of this Amplifier group, and stick to that subject which we all like to discuss and learn more about. Believe it or
/archives//html/Amps/2005-10/msg00224.html (8,965 bytes)

35. Re: [Amps] Low power output from 4-400A linear (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Tue, 11 Oct 2005 16:44:22 +0200
In this configuration the gain will be quite low; expect 6-8dB. You dont write how much power you feed it with from the exiter, but if it is 100W you are in the ballpark. I've buit a similar amp, usi
/archives//html/Amps/2005-10/msg00274.html (9,942 bytes)

36. Re: [Amps] FL2OOOB (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Tue, 11 Oct 2005 21:56:10 +0200
That is a feature of this amp, it is old enough to be meant to be driven from transceivers with tube finals, that had to be tuned anyway, the drive impedance for two 572b's in parallel is about 100Oh
/archives//html/Amps/2005-10/msg00280.html (8,073 bytes)

37. Re: [Amps] Drake L4 with 3-400Z photos (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Fri, 14 Oct 2005 08:15:07 +0200
One word: Beautiful.... Vy 73 de OZ1PIF, Peter ** OZ1PIF ** email: oz1pif(no-spam-filler)@privat.dk http://home24.inet.tele.dk/oz1pif/ Ph. +45 4619 3239 Snailmail: Peter Frenning Ternevej 23 DK-4130
/archives//html/Amps/2005-10/msg00350.html (8,883 bytes)

38. Re: [Amps] 2 kW amp project (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Mon, 21 Nov 2005 10:42:24 +0100
I'm building a 1KW 144MHz amp based on 4xMRF151G and a massive 50V/49A SMPSU (again surplus telecom). Total weight is less than 18Kg (all components at hand and factored in), 42x45x18cm excluding han
/archives//html/Amps/2005-11/msg00396.html (15,021 bytes)

39. [Amps] Beko 144MHz HLV-1200 MOSFET amp tech info wanted (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Sun, 21 May 2006 11:11:01 +0200
I'm looking for pictures/schematics/service-info for above. I'm particularily interested in the Splitter/Combiner design. I'm working on a similar design, using 4 x MRF151G, and can't decide which st
/archives//html/Amps/2006-05/msg00261.html (7,079 bytes)

40. Re: [Amps] Heat spreader for solid-state amps (score: 1)
Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>
Date: Tue, 29 Aug 2006 16:30:36 +0200
That depends on how far you want to be able to carry the amp! Seriously: both will do more than adequatly Vy 73 de OZ1PIF, Peter ** CW: Who? Me? You must be joking!! ** email: oz1pif(no-spam-filler)@
/archives//html/Amps/2006-08/msg00762.html (8,263 bytes)

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