Return-Path: Received: from rly-me09.mx.aol.com (rly-me09.mail.aol.com [172.20.83.43]) by air-me08.mail.aol.com (v123.3) with ESMTP id MAILINME081-9db49b56fbf1c0; Mon, 09 Mar 2009 15:36:38 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-me09.mx.aol.com (v123.3) with ESMTP id MAILRELAYINME097-9db49b56fbf1c0; Mon, 09 Mar 2009 15:36:34 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LglGT-0001ed-Sd for rs_out_1@blacksheep.org; Mon, 09 Mar 2009 19:35:53 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LglGT-0001eU-BT for rsgb_lf_group@blacksheep.org; Mon, 09 Mar 2009 19:35:53 +0000 Received: from mout1.freenet.de ([195.4.92.91]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LglGS-000674-3D for rsgb_lf_group@blacksheep.org; Mon, 09 Mar 2009 19:35:53 +0000 Received: from [195.4.92.20] (helo=10.mx.freenet.de) by mout1.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.69 #76) id 1LglGQ-0005Hk-4n for rsgb_lf_group@blacksheep.org; Mon, 09 Mar 2009 20:35:50 +0100 Received: from e182126164.adsl.alicedsl.de ([85.182.126.164]:1347 helo=[192.168.0.101]) by 10.mx.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.69 #76) id 1LglGP-0004r5-Ud for rsgb_lf_group@blacksheep.org; Mon, 09 Mar 2009 20:35:50 +0100 Message-ID: <49B56F94.6040100@freenet.de> Date: Mon, 09 Mar 2009 20:35:48 +0100 From: =?ISO-8859-1?Q?Wolfgang_B=FCscher?= User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <896162.53856.qm@web28101.mail.ukl.yahoo.com> In-Reply-To: <896162.53856.qm@web28101.mail.ukl.yahoo.com> X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: Fw: Re: LF: energy saving bulbs 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-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Hi Pete, Thanks for the 'forensic analysis'. I am tempted to build a high-voltage QRP transmitter from one of these beasts ;-) Sure that "DK51" is a unijunction transistor ? I found a french site (in french language) which seems to say that the DK51 is more or less compatible with an MJE13001, which is a 600 Volt, 0.2 A silicon NPN transistor. Looking at the circuit, it seems to make sense: http://pagesperso-orange.fr/doumai/Clartec_Lampe/Clartec_Lampe_8W.htm Cheers, Wolf DL4YHF .