Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc04.r1000.mx.aol.com (Internet Inbound) with ESMTP id AF899380000B1; Thu, 20 Dec 2012 04:55:05 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Tlck8-0004W5-Vi for rs_out_1@blacksheep.org; Thu, 20 Dec 2012 09:48:44 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Tlck5-0004Vw-0q for rsgb_lf_group@blacksheep.org; Thu, 20 Dec 2012 09:48:41 +0000 Received: from nm3.bt.bullet.mail.ukl.yahoo.com ([217.146.183.201]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1Tlcjz-0004w9-78 for rsgb_lf_group@blacksheep.org; Thu, 20 Dec 2012 09:48:39 +0000 Received: from [217.146.183.198] by nm3.bt.bullet.mail.ukl.yahoo.com with NNFMP; 20 Dec 2012 09:48:02 -0000 Received: from [217.146.189.78] by tm4.bt.bullet.mail.ukl.yahoo.com with NNFMP; 20 Dec 2012 09:48:02 -0000 Received: from [127.0.0.1] by smtp828.mail.ird.yahoo.com with NNFMP; 20 Dec 2012 09:48:02 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btinternet.com; s=s1024; t=1355996882; bh=zZNCEgCAKAgP2K5sGu8FRp1OU6PK0xkvqmdm90NZUbM=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:X-MimeOLE:In-Reply-To:Thread-Index; b=U41Lzi5VUuaI7Hlf1j8AORHRIdR7NiYyOcyGC9UCsuZynwJy7GeI3n8ln9wdOv5S2otlNi8LtK1ADfSZtAw7kWVzyz9OptyjRAUJ7ZmQHA2KG4xKuLm3CbR5brvKGHAnWn786NpGDRfE5gfWTGDq66yJb35E8SQ6EeBXv2dkLWw= X-Yahoo-Newman-Id: 642797.14071.bm@smtp828.mail.ird.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: WGcCac0VM1nkj5kDSw9U8My8jJOelxXZIQHpgLpR8NVTTJa fVuegot1uhpNlrWJIPcI39._run9QABEZhFVIQfDrT8o.owPE2bxWJ9kiamS 1XYZowB6TSTEMLWM8yCgkbyRp6Ixe6RMFHwuLBaskEE9jU1PoU42QTxxRc8P ikHsFQZwoL6GCsB4Kt9RLFbsf5buadDHkLvR7sj9uV86TeYNq2VogggDgeGf A1zlDQLvyiln6LFsLrr8OD4BlVph1zBcuEyoHk26lh4UgElPCqU3yJmIrN.o jLBd7Q0CNhwPkPwTtC_MeCsrhCEjTyXxSnQw.A12mqkKhGwkL226kB3g.QTR gTowDk.40Q99QomNOLnz5OFQni1jIjceBUsdflpeFNw4eoiKAQrmyFgIGCHm 9B2lLcjLbz3y1.bSnIL8pSjarqlRh5tqXjPsQdJkydd2cylhrC1lQV99f8s_ rmw41dSKKgQtudg-- X-Yahoo-SMTP: 9Y6mUHuswBAgnrOsukIiNdFDf95uy_Dz34nY1hlg2liKgYD952sjbg-- Received: from lindavideo (ken.h.wright@86.130.1.164 with login) by smtp828.mail.ird.yahoo.com with SMTP; 20 Dec 2012 01:48:02 -0800 PST From: "Ken" To: References: <000901cdddcc$a80a3300$0501a8c0@xphd97xgq27nyf> <53A793BE30F44797BAFF0AD8FED68450@lindavideo> <001b01cdde37$acae6410$0501a8c0@xphd97xgq27nyf> Date: Thu, 20 Dec 2012 09:47:57 -0000 Message-ID: MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 In-Reply-To: <001b01cdde37$acae6410$0501a8c0@xphd97xgq27nyf> Thread-Index: Ac3eN+iRJ93MTn3tT+eRqj+nW1XQFAAXcSzg 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 Mal. Thanks for the info, in my younger days as an electrical engineer occasionally had to work on live bus-bars so know the dangers, one of use got very badly burnt one day. I am still not clear regarding the NoV for 472kHz, I would have thought that if approved by WRAC then NoVs would not be required. I will try to improve my cw and meet you on the new band soon, I do enjoy cw although not very quick, at present I am using an RAF 'D' type, have tried a double paddle keyer not much success, am going to try a single paddle, what would you recommend? [...] 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 [217.146.183.201 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-Scan-Signature: c1295c176f29281d31cecda7e6248180 Subject: LF: RE: Re: RE: MORE VALVES Content-Type: multipart/alternative; boundary="----=_NextPart_000_003C_01CDDE97.1820C080" 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_60_70, HTML_FONTCOLOR_UNKNOWN,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 x-aol-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mtain-dc04.r1000.mx.aol.com ; domain : btinternet.com DKIM : fail x-aol-sid: 3039ac1d408450d2e0792235 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_003C_01CDDE97.1820C080 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hi Mal. Thanks for the info, in my younger days as an electrical engineer occasionally had to work on live bus-bars so know the dangers, one of use got very badly burnt one day. I am still not clear regarding the NoV for 472kHz, I would have thought that if approved by WRAC then NoVs would not be required. I will try to improve my cw and meet you on the new band soon, I do enjoy cw although not very quick, at present I am using an RAF 'D' type, have tried a double paddle keyer not much success, am going to try a single paddle, what would you recommend? 73s. Ken M0KHW _____ From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of mal hamilton Sent: 19 December 2012 22:25 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: RE: MORE VALVES Ken The valve and base in the picture is a 4CX1500B that was intended for 137 Khz not 500 Khz. At present both on 137 es 500 I am using solid state Transmitters, which are probably safer. I do have a selection of Dentron Amplifiers for the HF Bands with 8875 valves. Watch those High Voltages, no margin for mistakes, one Wobble and you Vaporise !! 73 es GL de Mal/G3KEV ----- Original Message ----- From: Ken To: rsgb_lf_group@blacksheep.org Sent: Wednesday, December 19, 2012 8:20 PM Subject: LF: RE: MORE VALVES Hi Mal. What valve are you using? I am currently building a TX with a 6293 Beam Tetrode in the PA. the building of the two power units has slowed the construction down with the inter-linking control cables etc. The PA xformer is 650 - 0 - 650 volts @ 400mA with a bridge rectifier, the valve max anode voltage is 3Kv and anode current 1.5A. I am hoping for Class C, 500 watts output cw on 472kHz (if we ever get the NoV). 73. Ken M0KHW _____ From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of mal Hamilton-Sent: 19 December 2012 09:39 To: rsgb Subject: LF: MORE VALVES This is a 137 Class C amp project, but since CW activity has dropped to virtually NIL I am not rushing to complete. de G3KEV ------=_NextPart_000_003C_01CDDE97.1820C080 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Hi Mal. Thanks for the info, in my = younger days as an electrical engineer occasionally had to work on live bus-bars = so know the dangers, one of use got very badly burnt one day. I am still = not clear regarding the NoV for 472kHz, I would have thought that if approved by = WRAC then NoVs would not be required. I will try to improve my cw and meet = you on the new band soon, I do enjoy cw although not very quick, at present I = am using an RAF ‘D’ type, have tried a double paddle keyer not much = success, am going to try a single paddle, what would you recommend? =

 

73s.

 

Ken

 

M0KHW

 

From: = owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of mal = hamilton
Sent: 19 December 2012 = 22:25
To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: RE: MORE = VALVES

 

Ken

The valve and base in the picture is a 4CX1500B  that was intended for 137 Khz not 500 Khz. =

At present both on 137 es 500 I am using solid state Transmitters, which are probably safer. I do have a selection of Dentron = Amplifiers for the HF Bands with 8875 valves.

Watch those High Voltages, no margin for mistakes, = one Wobble and you Vaporise !!

73 es GL de Mal/G3KEV

 

 

----- Original Message ----- =

From: Ken

Sent: = Wednesday, December 19, 2012 8:20 PM

Subject: LF: RE: = MORE VALVES

 

Hi = Mal.

What valve are you using? I am = currently building a TX with a 6293 Beam Tetrode in the PA. the building of the = two power units has slowed the construction down with the inter-linking control = cables etc. The PA xformer is 650 – 0 - 650 volts @ 400mA with a bridge rectifier, the valve max anode voltage is 3Kv and anode current 1.5A. I = am hoping for Class C, 500 watts output cw on 472kHz (if we ever get the = NoV).

 

73.

 

Ken

 

M0KHW

 

From: = owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of mal = Hamilton-Sent: 19 December 2012 09:39
To: rsgb
Subject: LF: MORE = VALVES

 

This is a 137 Class C amp project, but since CW activity  has dropped to virtually NIL I am not rushing to complete.

de G3KEV

 

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