Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mk03.r1000.mx.aol.com (Internet Inbound) with ESMTP id E76EF380000E5; Tue, 18 Dec 2012 03:05:00 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Tks6Y-00026R-0G for rs_out_1@blacksheep.org; Tue, 18 Dec 2012 08:00:46 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Tks6X-00026I-Ja for rsgb_lf_group@blacksheep.org; Tue, 18 Dec 2012 08:00:45 +0000 Received: from smtpout4.wanadoo.co.uk ([80.12.242.68] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Tks6V-0000vR-R0 for rsgb_lf_group@blacksheep.org; Tue, 18 Dec 2012 08:00:44 +0000 Received: from g4dmp.fsnet.co.uk ([2.28.205.178]) by mwinf5d52 with ME id cw0L1k00T3rTu1e03w0MKc; Tue, 18 Dec 2012 09:00:21 +0100 Message-ID: Date: Tue, 18 Dec 2012 07:59:14 +0000 To: rsgb_lf_group@blacksheep.org From: David Pratt References: In-Reply-To: MIME-Version: 1.0 User-Agent: Turnpike/6.07-M () 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: I don't see why not, Dimitris; my 501-504 kHz transmitter uses a 6AC7 Clapp VFO - 6AC7 untuned BA - 807 PA to a once conventional pi-network output. The VFO is in fact an old top band VFO with the coil and capacitors changed. ;-) [...] 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 [80.12.242.68 listed in list.dnswl.org] X-Scan-Signature: c1f72e5acb1277e013f90c915ad7ad68 Subject: Re: LF: FT-241A xtals? Content-Type: text/plain;charset=us-ascii;format=flowed 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=none 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: 3039ac1d618750d023ac0fd4 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none I don't see why not, Dimitris; my 501-504 kHz transmitter uses a 6AC7 Clapp VFO - 6AC7 untuned BA - 807 PA to a once conventional pi-network output. The VFO is in fact an old top band VFO with the coil and capacitors changed. ;-) 73 de David G4DMP / G3KEP In a recent message, Dimitrios Tsifakis writes >Hello lf group, > >has anyone made or thought of making a 472 kc transmitter using >vintage FT-241A xtals? I have three or four of these with fundamental >frequencies in the 474 kc to 479 kc range, so I was thinking of making >a traditional 6AG7/807 transmitter, just for the fun of it. > >Can't think of a better transmitter for hand keyed CW for that >historic part of the spectrum! > >73, Dimitris VK1SV > > -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.uk | + - - - - - - - - - - - - - - - - +