Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-db06.r1000.mx.aol.com (Internet Inbound) with ESMTP id E5264380000F4; Tue, 8 Nov 2011 15:17:52 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RNs6H-0006Md-RZ for rs_out_1@blacksheep.org; Tue, 08 Nov 2011 20:16:53 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RNs6H-0006MU-Ag for rsgb_lf_group@blacksheep.org; Tue, 08 Nov 2011 20:16:53 +0000 Received: from mail-ww0-f47.google.com ([74.125.82.47]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RNs6F-0001uy-SZ for rsgb_lf_group@blacksheep.org; Tue, 08 Nov 2011 20:16:53 +0000 Received: by wwf22 with SMTP id 22so1152952wwf.28 for ; Tue, 08 Nov 2011 12:16:46 -0800 (PST) Received: by 10.181.13.82 with SMTP id ew18mr14707704wid.16.1320783406022; Tue, 08 Nov 2011 12:16:46 -0800 (PST) Received: from stbryant-mac2.local (64-103-25-233.cisco.com. [64.103.25.233]) by mx.google.com with ESMTPS id v10sm1559417wiy.23.2011.11.08.12.16.43 (version=SSLv3 cipher=OTHER); Tue, 08 Nov 2011 12:16:44 -0800 (PST) Message-ID: <4EB98E2A.1090905@g3ysx.org.uk> Date: Tue, 08 Nov 2011 20:16:42 +0000 From: Stewart Bryant User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org CC: Roelof Bakker References: <6960E96D-E826-4AD3-A1FF-585BFBEC86A6@numeo.fr> In-Reply-To: X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: PA0RDT whip 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: 0:2:253121648:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d405a4eb98e704a35 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none On 04/11/2011 18:10, Roelof Bakker wrote: > On an other note, instead of the trusty 2N5109 a BFQ19, a modern rf > transistor, can be used. > It gives slightly better IMD figures in this circuit, especial at lower > supply voltages. > > 73, > Roelof, pa0rdt > The only BFQ19s that I was able to source were SMT. Did you get them in another package? Did you need to use a heatsink with this transistor? 73 Stewart/G3YSX