Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb02.r1000.mx.aol.com (Internet Inbound) with ESMTP id D5B9A38000082; Sun, 25 Mar 2012 17:21:36 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SBure-0003y4-QB for rs_out_1@blacksheep.org; Sun, 25 Mar 2012 22:20:38 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SBure-0003xv-5a for rsgb_lf_group@blacksheep.org; Sun, 25 Mar 2012 22:20:38 +0100 Received: from mail001.aei.ca ([206.123.6.130]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1SBurd-0000vA-Js for rsgb_lf_group@blacksheep.org; Sun, 25 Mar 2012 22:20:38 +0100 Received: (qmail 31294 invoked by uid 89); 25 Mar 2012 21:20:36 -0000 Received: by simscan 1.2.0 ppid: 31291, pid: 31292, t: 0.0420s scanners: regex: 1.2.0 attach: 1.2.0 Received: from mail002.aei.ca (HELO mail002.contact.net) (206.123.6.132) by mail001.aei.ca with (DHE-RSA-AES256-SHA encrypted) SMTP; 25 Mar 2012 21:20:36 -0000 Received: (qmail 8611 invoked by uid 89); 25 Mar 2012 21:20:36 -0000 Received: by simscan 1.2.0 ppid: 8590, pid: 8601, t: 0.4125s scanners: regex: 1.2.0 attach: 1.2.0 clamav: 0.97.3/m: spam: 3.3.1 Received: from dsl-66-36-139-104.mtl.aei.ca (HELO ?192.168.1.201?) (planophore@66.36.139.104) by mail.aei.ca with ESMTPA; 25 Mar 2012 21:20:35 -0000 Message-ID: <4F6F8C22.5000503@aei.ca> Date: Sun, 25 Mar 2012 17:20:34 -0400 From: Graham User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.28) Gecko/20120313 Thunderbird/3.1.20 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <1FFFC71EA0BE4176BEFFBF7D095D3BA9@Extensa> <4106A79FDAE74690B0A2C710BDA51B55@Extensa> <4F6F6C67.3080103@aei.ca> In-Reply-To: X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Re: Power experiment / Mini Whip / 8970 Hz ! Content-Type: text/plain; charset=ISO-8859-15; 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-SCOLL-SCORE: 0:2:473949184:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60164f6f8c605c6c X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Thanks Roelof, I use a lot of 2n5109's and am always on the look out for suitable surface mount devices that might make a good substitute. I will have to get a few of each and give them a try. cheers, Graham ve3gtc On 12-03-25 04:41 PM, Roelof Bakker wrote: > 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 >