Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 5F57138000093; Wed, 19 Dec 2012 17:26:36 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TlS4r-0007tB-QK for rs_out_1@blacksheep.org; Wed, 19 Dec 2012 22:25:25 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TlS4r-0007t2-7K for rsgb_lf_group@blacksheep.org; Wed, 19 Dec 2012 22:25:25 +0000 Received: from out1.ip02ir2.opaltelecom.net ([62.24.128.238]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1TlS4p-0002mf-9J for rsgb_lf_group@blacksheep.org; Wed, 19 Dec 2012 22:25:24 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgIFAL490lBcF/Dp/2dsb2JhbABEgkm7MxdzghkFAQEFCAEBAyApAiwBAQMFAgEDEQQBAQoeBxQBBBoGDQkIBhMKAQICAQGHcAMTuESLZGkcD2+DKQOILIVRmFWCdA X-IronPort-AV: E=Sophos;i="4.84,320,1355097600"; d="scan'208,217";a="413131445" Received: from host-92-23-240-233.as13285.net (HELO xphd97xgq27nyf) ([92.23.240.233]) by out1.ip02ir2.opaltelecom.net with SMTP; 19 Dec 2012 22:25:01 +0000 Message-ID: <001b01cdde37$acae6410$0501a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <000901cdddcc$a80a3300$0501a8c0@xphd97xgq27nyf> <53A793BE30F44797BAFF0AD8FED68450@lindavideo> Date: Wed, 19 Dec 2012 22:24:55 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 2.6 (++) 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: 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 [...] Content analysis details: (2.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 2.6 AXB_XMAILER_MIMEOLE_OL_024C2 AXB_XMAILER_MIMEOLE_OL_024C2 X-Scan-Signature: d2a449809c9c1ff1983612d049372878 Subject: LF: Re: RE: MORE VALVES Content-Type: multipart/alternative; boundary="----=_NextPart_000_0018_01CDDE37.AC3E6430" 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-sid: 3039ac1db40750d23f1b028f 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_0018_01CDDE37.AC3E6430 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ken The valve and base in the picture is a 4CX1500B that was intended for = 137 Khz not 500 Khz.=20 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 -----=20 From: Ken=20 To: rsgb_lf_group@blacksheep.org=20 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). =20 73. =20 Ken =20 M0KHW =20 -------------------------------------------------------------------------= ----- 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 =20 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 =20 ------=_NextPart_000_0018_01CDDE37.AC3E6430 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ken
The valve and base in the picture is a=20 4CX1500B  that was intended for 137 Khz not 500 Khz. =
At present both on 137 es 500 I am using solid = state=20 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=20 Wobble and you Vaporise !!
73 es GL de Mal/G3KEV
 
 
----- Original Message -----
From:=20 Ken
Sent: Wednesday, December 19, = 2012 8:20=20 PM
Subject: LF: RE: MORE = VALVES

Hi=20 Mal.

What valve = are you=20 using? I am currently building a TX with a 6293 Beam Tetrode in the = PA. the=20 building of the two power units has slowed the construction down with = the=20 inter-linking control cables etc. The PA xformer is 650 =96 0 - 650 = volts @=20 400mA with a bridge rectifier, the valve max anode voltage is 3Kv and = anode=20 current 1.5A. I am hoping for Class C, 500 watts output cw on 472kHz = (if we=20 ever get the NoV).

 

73.

 

Ken

 

M0KHW

 

From:=20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]=20 On Behalf Of mal=20 Hamilton-Sent: 19 = December 2012=20 09:39
To: = rsgb
Subject: LF: MORE=20 VALVES

 

This is a 137 Class C=20 amp project, but since CW activity  has dropped to = virtually=20 NIL I am not rushing to complete.

de=20 G3KEV

 

= ------=_NextPart_000_0018_01CDDE37.AC3E6430--