Return-Path: Received: (qmail 6843 invoked from network); 4 Oct 2003 06:36:47 -0000 Received: from netmail00.services.quay.plus.net (212.159.14.218) by mailstore with SMTP; 4 Oct 2003 06:36:47 -0000 Received: (qmail 12338 invoked from network); 4 Oct 2003 06:36:47 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from post.thorcom.com (193.82.116.70) by netmail00.services.quay.plus.net with SMTP; 4 Oct 2003 06:36:43 -0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1A5fxB-00064b-C6 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 04 Oct 2003 07:31:45 +0100 Received: from [212.78.193.245] (helo=smtp01.spray.se) by post.thorcom.com with esmtp (Exim 4.14) id 1A5fx6-00064S-Ed for rsgb_lf_group@blacksheep.org; Sat, 04 Oct 2003 07:31:40 +0100 X-Fake-Domain: urban Received: from urban (t1o940p43.telia.com [194.237.162.43]) by smtp01.spray.se (Postfix) with SMTP id 1E4307319B for ; Sat, 4 Oct 2003 09:31:03 +0200 (CEST) X-Bad-Message-ID: no DNS (ekholm) Message-ID: <001b01c38a40$f498cae0$2ba2edc2@ekholm> From: "Urban Ekholm" To: rsgb_lf_group@blacksheep.org Date: Sat, 4 Oct 2003 08:30:07 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: "RF"-chokes Content-Type: text/html; charset=windows-1252 X-Spam-Status: No, hits=1.0 required=5.0tests=HTML_30_40,HTML_MESSAGEversion=2.55 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Rating: 2 Content-transfer-encoding: 8bit

Hello everybody !

When experimenting on the LF-band chokes with inductances of some mH are often needed. They are not so easy to get in these days. Those in the junk-box from the tube era are often quite big.

Do you have low-energy lamps that are not working any more ? Before giving them away to recycling do the following:

Carefully disassemble the electronic part with a screwdriver. Inside there (among some other things) is a choke with an inductance of 1.8-17mH (depending of the power and the make of the lamp). They chokes are very small, approximately 12x12x15mm. I have measured the Q of some of them and it was between 10 and 25.

Happy recycling !

SM5EUF / Urban