Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh03.r1000.mx.aol.com (Internet Inbound) with ESMTP id B4E9438000083; Sun, 25 Mar 2012 16:43:13 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SBuGA-0003en-Sa for rs_out_1@blacksheep.org; Sun, 25 Mar 2012 21:41:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SBuGA-0003ee-9q for rsgb_lf_group@blacksheep.org; Sun, 25 Mar 2012 21:41:54 +0100 Received: from smtp-vbr10.xs4all.nl ([194.109.24.30]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1SBuG7-0000fq-UI for rsgb_lf_group@blacksheep.org; Sun, 25 Mar 2012 21:41:54 +0100 Received: from pc-roelof (ndb.demon.nl [82.161.81.65]) by smtp-vbr10.xs4all.nl (8.13.8/8.13.8) with ESMTP id q2PKfjuq095774 for ; Sun, 25 Mar 2012 22:41:51 +0200 (CEST) (envelope-from roelof@ndb.demon.nl) To: rsgb_lf_group@blacksheep.org References: <1FFFC71EA0BE4176BEFFBF7D095D3BA9@Extensa> <4106A79FDAE74690B0A2C710BDA51B55@Extensa> <4F6F6C67.3080103@aei.ca> Date: Sun, 25 Mar 2012 22:41:43 +0200 MIME-Version: 1.0 From: "Roelof Bakker" Message-ID: In-Reply-To: <4F6F6C67.3080103@aei.ca> User-Agent: Opera Mail/11.61 (Win32) X-Virus-Scanned: by XS4ALL Virus Scanner X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Content-Type: text/plain; charset=iso-8859-15; format=flowed; delsp=yes Subject: Re: LF: Re: Power experiment / Mini Whip / 8970 Hz ! 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-SCOLL-SCORE: 0:2:429405664:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60d74f6f83617395 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello Graham, A quick search revealed a difference in maximum collector current; 100 mA for the BFQ19 and 75 mA for the BFQ19S. In this application the collector current is about 35 mA at 12V, so well below the maximum rating of either device. So, I think both can be used. 73, Roelof, pa0rdt