Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-db06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 6467438000091; Thu, 31 May 2012 11:13:25 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Sa71C-0002Vp-UO for rs_out_1@blacksheep.org; Thu, 31 May 2012 16:10:30 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Sa71C-0002Vg-EH for rsgb_lf_group@blacksheep.org; Thu, 31 May 2012 16:10:30 +0100 Received: from mailout-de.gmx.net ([213.165.64.23]) by relay1.thorcom.net with smtp (Exim 4.77) (envelope-from ) id 1Sa70z-0003XV-D4 for rsgb_lf_group@blacksheep.org; Thu, 31 May 2012 16:10:29 +0100 Received: (qmail invoked by alias); 31 May 2012 15:10:14 -0000 Received: from 31-19-4-230-dynip.superkabel.de (EHLO uwePC) [31.19.4.230] by mail.gmx.net (mp071) with SMTP; 31 May 2012 17:10:14 +0200 X-Authenticated: #9373712 X-Provags-ID: V01U2FsdGVkX1/PKZxXLcTP5dg+tTmAB6/WEiWWN6nIl/dQw208Zc vfO/xOd2yuY9v4 Message-ID: <63351021B87046C482A1433665C54902@uwePC> From: "Uwe Wensauer" To: References: <8BE4322932454ABBAF36917E7F0B7293@uwePC> <4FC74C16.1050905@iup.uni-heidelberg.de> <034701cd3f1d$b69fa650$1502a8c0@Clemens04> <4FC7596E.4070806@iup.uni-heidelberg.de> In-Reply-To: <4FC7596E.4070806@iup.uni-heidelberg.de> Date: Thu, 31 May 2012 17:10:10 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3538.513 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3538.513 X-Y-GMX-Trusted: 0 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi, here is the bill for my new JUMA TX500 Subtotal: 299.00€ Postage & Packaging: 26.00€ Tax: 68.77€ Grand Total: 393.77€ I´s by the way the 3rd kit I am building ( all bevore where built for others ..) but thats for my self .. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [213.165.64.23 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (uwe.wensauer[at]gmx.de) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: da9a90c67b7e22f6718c156d8d99c1a4 Subject: LF: Re: 475 kc Exiter /JUMA Content-Type: multipart/alternative; boundary="----=_NextPart_000_003B_01CD3F50.3C1316F0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, MISSING_OUTLOOK_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 1:2:499161152:93952408 X-AOL-SCOLL-URL_COUNT: 1 x-aol-sid: 3039ac1d405a4fc78a940e9c X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_003B_01CD3F50.3C1316F0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi, here is the bill for my new JUMA TX500 Subtotal: 299.00=80 Postage & Packaging: 26.00=80 Tax: 68.77=80 Grand Total: 393.77=80 I=B4s by the way the 3rd kit I am building ( all bevore where built for = others ..) but thats for my self .. Uwe DK1KQ From: Stefan Sch=E4fer=20 Sent: Thursday, May 31, 2012 1:43 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: 475 kc Exiter /JUMA Hi Clemens,=20 Oh, OK. But anyway it was a very good hint to mention the JUMA 500 TX = since it leads me to the CMCD design and this paper which nicely = describes the problem of the VMCD desgin which i am trying in my first = tests. The output C of the FETs is the problem. Since i want to have a = relatively high power (100W) at 12V DC, the primary impedance is very = low. So i have to use FETs with a very low on-resistance, ideally as low = as possible of course. To find them is no problem (e.g. IRFP4368), but = the output C is much to high then. I tried a IRZF48N (2 of them of = course) as a compromise between RDSon and Cout but am just getting 60% = efficiency at 70W in the first attempt. That's not acceptable for a /p = PA that has to stay compact, i.e. without a big heat sink and/or a = fan... The basics are well explained in this paper, makes fun to read :-) 73, Stefan/DK7FC Am 31.05.2012 13:08, schrieb Clemens Paul:=20 It costs 300 Euro which is not to much.=20 Unfortunately you have to add 23%VAT tax within EU and shipping costs=20 which I estimate to 30-40 Euro.=20 So we end up somewhere around 400 Euro.=20 Interesting kit,though.=20 73=20 Clemens=20 DL4RAJ=20 ------=_NextPart_000_003B_01CD3F50.3C1316F0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi,
here is the  bill for my new JUMA TX500
 
Subtotal: 299.00=80
Postage & = Packaging:=20 26.00=80
Tax: 68.77=80
Grand Total: 393.77=80
 
I=B4s by the way the 3rd kit I am = building ( all=20 bevore where built for others ..) but thats for my self ..
 
Uwe DK1KQ

 
From: Stefan = Sch=E4fer
Sent: Thursday, May 31, 2012 1:43 PM
Subject: Re: LF: 475 kc Exiter /JUMA
 
Hi=20 Clemens,

Oh, OK. But anyway it was a very good hint to mention = the JUMA=20 500 TX since it leads me to the CMCD design and this paper which nicely=20 describes the problem of the VMCD desgin which i am trying in my first=20 tests.
The output C of the FETs is the problem. Since i want to have = a=20 relatively high power (100W) at 12V DC, the primary impedance is very = low. So i=20 have to use FETs with a very low on-resistance, ideally as low as = possible of=20 course. To find them is no problem (e.g. IRFP4368),=20 but the output C is much to high then. I tried a IRZF48N (2 of them of = course)=20 as a compromise between RDSon and Cout but am just getting 60% = efficiency at 70W=20 in the first attempt. That's not acceptable for a /p PA that has to stay = compact, i.e. without a big heat sink and/or a fan...

The basics = are well=20 explained in this paper, makes fun to read :-)

73, = Stefan/DK7FC

Am=20 31.05.2012 13:08, schrieb Clemens Paul:=20
It costs 300 Euro which is not to much.=20

Unfortunately you have to add 23%VAT tax within = EU and=20 shipping costs
which I estimate to 30-40 Euro.
So we end up = somewhere=20 around 400 Euro.
Interesting kit,though.

73
Clemens =
DL4RAJ=20


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