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 w2DArOJ2029543 for ; Tue, 13 Mar 2018 11:53:27 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1evhU9-0000TA-NP for rs_out_1@blacksheep.org; Tue, 13 Mar 2018 10:48:49 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1evhU9-0000T1-8W for rsgb_lf_group@blacksheep.org; Tue, 13 Mar 2018 10:48:49 +0000 Received: from rhcavuit02.kulnet.kuleuven.be ([2a02:2c40:0:c0::25:130]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1evhU6-00062v-Ha for rsgb_lf_group@blacksheep.org; Tue, 13 Mar 2018 10:48:48 +0000 X-KULeuven-Envelope-From: rik.strobbe@kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: 8DED1120324.A36DD X-KULeuven-Information: Katholieke Universiteit Leuven Received: from icts-p-smtps-2.cc.kuleuven.be (icts-p-smtps-2e.kulnet.kuleuven.be [134.58.240.34]) by rhcavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 8DED1120324 for ; Tue, 13 Mar 2018 11:48:40 +0100 (CET) Received: from ICTS-S-EXMBX19.luna.kuleuven.be (icts-s-exmbx19.luna.kuleuven.be [10.112.11.50]) (using TLSv1.2 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by icts-p-smtps-2.cc.kuleuven.be (Postfix) with ESMTPS id 8B1E82003B for ; Tue, 13 Mar 2018 11:48:40 +0100 (CET) Received: from ICTS-S-EXMBX27.luna.kuleuven.be (10.112.11.62) by ICTS-S-EXMBX19.luna.kuleuven.be (10.112.11.50) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Tue, 13 Mar 2018 11:48:40 +0100 Received: from ICTS-S-EXMBX27.luna.kuleuven.be ([fe80::291a:cc4f:6953:698a]) by ICTS-S-EXMBX27.luna.kuleuven.be ([fe80::291a:cc4f:6953:698a%25]) with mapi id 15.00.1320.000; Tue, 13 Mar 2018 11:48:40 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Thread-Topic: LF: LU1DOW soon in MF/LF Thread-Index: AdO55g6sPOeGIq8zQ1m98+mbMIrGof//+fYA//5tmuCAAz1ybw== Date: Tue, 13 Mar 2018 10:48:40 +0000 Message-ID: <1520938119559.53346@kuleuven.be> References: <579355A36AEE9D4FA555C45D556003AB9ABB1B77@servigilant.vigilant.local> <244965788.20180312101810@gmail.com>,<579355A36AEE9D4FA555C45D556003AB9ABB2634@servigilant.vigilant.local> In-Reply-To: <579355A36AEE9D4FA555C45D556003AB9ABB2634@servigilant.vigilant.local> Accept-Language: nl-BE, en-GB, en-US Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.112.50.1] MIME-Version: 1.0 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: Hello Luis, there is no need for class B when using DFCW. As it is a kind of FSK it can be used in class C (or D or E). 73, Rik ON7YD - OR7T [...] Content analysis details: (-0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: f38d515a9cad1e977fcfe251941a8120 Subject: Re: LF: LU1DOW soon in MF/LF Content-Type: text/plain; charset="iso-8859-1" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=TO_ADDRESS_EQ_REAL 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 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by klubnl.pl id w2DArOJ2029543 Hello Luis, there is no need for class B when using DFCW. As it is a kind of FSK it can be used in class C (or D or E). 73, Rik ON7YD - OR7T ________________________________________ Van: owner-rsgb_lf_group@blacksheep.org namens VIGILANT Luis Fernández Verzonden: dinsdag 13 maart 2018 11:28 Aan: rsgb_lf_group@blacksheep.org Onderwerp: RE: LF: LU1DOW soon in MF/LF Hi Chris, LF Oscar answered the question. I'll try to translate, but can't promise not to make a mistake in tube terminology :-) He is not using filament choke as this is a direct heating tethrode. So the midpoint of the filament transformer secondary is connected to ground The driving is to the grid with a tuned circuit. It works in C class for QRSS and B Class for DFCW. And YES, this a dangerous high voltage bricolage and a waste of energy. Just the filament is sucking 35.5 Amps :-O Oscar plans to test first single carrier in LF with LU8YD at 1000Km first to check if all is going as in previous tests some time ago. After that he will switch to MF and test again 73 de Luis EA5DOM