Return-Path: Received: from mtain-df02.r1000.mx.aol.com (mtain-df02.r1000.mx.aol.com [172.29.64.214]) by air-ma05.mail.aol.com (v129.4) with ESMTP id MAILINMA051-b5244c133cd0112; Sat, 12 Jun 2010 03:52:48 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-df02.r1000.mx.aol.com (Internet Inbound) with ESMTP id B4718380000B5; Sat, 12 Jun 2010 03:52:46 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ONLVU-0001cc-IQ for rs_out_1@blacksheep.org; Sat, 12 Jun 2010 08:51:56 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ONLVU-0001cT-77 for rsgb_lf_group@blacksheep.org; Sat, 12 Jun 2010 08:51:56 +0100 Received: from mailout-us.gmx.com ([74.208.5.67]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1ONLVS-0005SV-Cz for rsgb_lf_group@blacksheep.org; Sat, 12 Jun 2010 08:51:56 +0100 Received: (qmail invoked by alias); 12 Jun 2010 07:51:48 -0000 Received: from 75-168-152-6.mpls.qwest.net (EHLO [192.168.1.100]) [75.168.152.6] by mail.gmx.com (mp-us002) with SMTP; 12 Jun 2010 03:51:48 -0400 X-Authenticated: #60769621 X-Provags-ID: V01U2FsdGVkX19eYe9xg6xeJWp6KfPf1VFgHmDUsTmJPAFdMfdFit N2EgUQtlx128ZZ Message-ID: <4C133C7E.7080308@gmx.com> Date: Sat, 12 Jun 2010 02:51:26 -0500 From: Mike-WE0H User-Agent: Thunderbird 2.0.0.24 (X11/20100317) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <002401cb096b$7d950560$0401a8c0@xphd97xgq27nyf> <003a01cb097f$640755d0$0401a8c0@xphd97xgq27nyf> <4C12878A.4080909@gmx.com> <001701cb0a02$6b689720$0401a8c0@xphd97xgq27nyf> In-Reply-To: <001701cb0a02$6b689720$0401a8c0@xphd97xgq27nyf> X-Y-GMX-Trusted: 0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: Re: HV-Transformer experiment on 9kc Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: 3039ac1d40d64c133cce1777 X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) My TV transformer works very well from about 4kc on up. I get 300v p-p out of it with just .7v p-p input from my DDS VFO. I tested some mains transformers and the loss was too high at even 4kc. They did step the signal up some but the loss was just too much to mess around with them when those old tube TV transformers work so efficient. Mike WE0H mal h wrote: > A TV line output transformer worked at 15 kcs NOT 50/60 Hz. I use LOPT > cores which are 3C material on 137 and 500 and are perfect for the job. > mal/g3kev