Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w15BFaFr014472 for ; Mon, 5 Feb 2018 12:15:39 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eiefs-0006BX-R7 for rs_out_1@blacksheep.org; Mon, 05 Feb 2018 11:11:00 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eiefr-0006BO-EV for rsgb_lf_group@blacksheep.org; Mon, 05 Feb 2018 11:10:59 +0000 Received: from smtp-out01.xworks.net ([31.25.48.13]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eiefo-0007TK-4c for rsgb_lf_group@blacksheep.org; Mon, 05 Feb 2018 11:10:58 +0000 Received: from mailbackend1-1 (cluster06.xworks.net [10.100.1.80]) by smtp-out01.xworks.net (Postfix) with ESMTP id 6327B61609 for ; Mon, 5 Feb 2018 12:10:55 +0100 (CET) X-DKIM-Result: Domain=kabelmail.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kabelmail.de; s=mail; t=1517829055; bh=15/q6Uvw6iVkKPZG9jZlTgv/v3x9AbBPdm7CG0TOOWk=; h=Subject:To:References:From:Date:MIME-Version:In-Reply-To: Content-Type; b=fq4mrET1dSIX9+WjK87Suwr87gn+fW2sQqfNtIGlMXf8HD+Xu+S4zys1GqEA2dJ3E tknCmKINjIrRbcnqAExf1I0e0RCiyA8YAbMzz8nPp+rTzbQbEIEQ8dUOwbRbyT86Bj 8EP6iTzVqhYHOn9bMrueVD9Z8049GsH7kHaWqkr4= Received: from [192.168.36.33] (ipbcc12910.dynamic.kabel-deutschland.de [188.193.41.16]) (authenticated bits=0) by smtp.kabelmail.de with ESMTP id w15BAnnr031377 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 5 Feb 2018 12:10:50 +0100 X-mediaBEAM-Originating-IP: [188.193.41.16] X-mediaBEAM-AUTHID: [DK1IS@kabelmail.de] To: rsgb_lf_group@blacksheep.org References: <579355A36AEE9D4FA555C45D556003AB9AB49FE8@servigilant.vigilant.local> From: DK1IS Message-ID: Date: Mon, 5 Feb 2018 12:13:05 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <579355A36AEE9D4FA555C45D556003AB9AB49FE8@servigilant.vigilant.local> X-mediaBEAM-AuthCheck: route13 X-mediaBEAM-AuthScore: 0.0/5.0, scanned in 3.150sec X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Luis, the part number of the Murata inductors 10 mH/0.6 A (DC) in use here is 1410606C, see https://www.murata-ps.com/en/1410606c.html. There you can also get a pdf-summary of all available inductors of this family. They even offer higher inductances up to 22 mH, but I suppose using them you´ll get voltage and current problems. 10 mH seems to be a good compromise: you don´t need too much of them and at 8270 Hz / 600 mA there are about 320 V rms per inductor. Up to now they withstand and the stationary surface temperatur reaches 52 °C (at the end of a warm winter ;-)). For test samples the usual european mail order companies are OK, but for larger numbers one should search for cheaper offers. My final source was Mouser, they deliver from Texas. But it took 4 months to get all the 60 inductors in three batches ... Sorry to say this loading coil concept is rather expensive: the material bill for the inductors, the ply wood rings, the connectors and all the polyamide stuff finally added up to about € 400 - but it has been a nice project anyway and the only one fitting in my frame conditions. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: f9f85a03ab18710b130c40acc03380f0 Subject: Re: New station on VLF: DK1IS Content-Type: multipart/alternative; boundary="------------AD5DF1CC6D2A98E69163EDDC" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_50_60,HTML_MESSAGE 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 This is a multi-part message in MIME format. --------------AD5DF1CC6D2A98E69163EDDC Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by smtp.kabelmail.de id w15BAnnr031377 Hi Luis, the part number of the Murata inductors 10 mH/0.6 A (DC) in use here is=20 1410606C, see https://www.murata-ps.com/en/1410606c.html. There you can=20 also get a pdf-summary of all available inductors of this family. They=20 even offer higher inductances up to 22 mH, but I suppose using them=20 you=C2=B4ll get voltage and current problems. 10 mH seems to be a good=20 compromise: you don=C2=B4t need too much of them and at 8270 Hz / 600 mA=20 there are about 320 V rms per inductor. Up to now they withstand and the=20 stationary surface temperatur reaches 52 =C2=B0C (at the end of a warm wi= nter=20 ;-)). For test samples the usual european mail order companies are OK, but for=20 larger numbers one should search for cheaper offers. My final source was=20 Mouser, they deliver from Texas. But it took 4 months to get all the 60=20 inductors in three batches ... Sorry to say this loading coil concept is rather expensive: the material=20 bill for the inductors, the ply wood rings, the connectors and all the=20 polyamide stuff finally added up to about =E2=82=AC 400 - but it has been= a nice=20 project anyway and the only one fitting in my frame conditions. 73, Tom, DK1IS Am 05.02.2018 um 10:23 schrieb VIGILANT Luis Fern=C3=A1ndez: > > Hi Tom, VLF > > Thank you VERY MUCH for the detailed description of your Dream Tx for=20 > 36Km band > > Different approach and neat construction. Congratulations ! J > > Can you provide a part number for the Murata ferrite inductors? > > 73 de Luis > > EA5DOM > --------------AD5DF1CC6D2A98E69163EDDC Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by smtp.kabelmail.de id w15BAnnr031377
Hi Luis,

the part number of the Murata inductors 10 mH/0.6 A (DC) in use here is 1410606C, see https://www.murata-ps.com/en/14= 10606c.html. There you can also get a pdf-summary of all available inductors of this family. They even offer higher inductances up to 22 mH, but I suppose using them you=C2=B4ll get voltage and current problems. 10= mH seems to be a good compromise: you don=C2=B4t need too much of them= and at 8270 Hz / 600 mA there are about 320 V rms per inductor. Up to now they withstand and the stationary surface temperatur reaches 52 =C2=B0C (at the end of a warm winter ;-)).
For test samples the usual european mail order companies are OK, but for larger numbers one should search for cheaper offers. My final source was Mouser, they deliver from Texas. But it took 4 months to get all the 60 inductors in three batches ...
Sorry to say this loading coil concept is rather expensive: the material bill for the inductors, the ply wood rings, the connectors and all the polyamide stuff finally added up to about =E2= =82=AC 400 - but it has been a nice project anyway and the only one fitting in my frame conditions.

73,
Tom, DK1IS

Am 05.02.2018 um 10:23 schrieb VIGILANT Luis Fern=C3=A1ndez:

Hi Tom, VLF

=C2=A0

Thank you VERY MUCH for the detailed description of your Dream Tx for 36Km band<= /p>

Different approach and neat construction. Congratulations ! J

=C2=A0

Can you provide a part number for the Murata ferrite inductors?

=C2=A0

73 de Luis

EA5DOM

=C2=A0


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