Return-Path: Received: from mtain-mp03.r1000.mx.aol.com (mtain-mp03.r1000.mx.aol.com [172.29.193.71]) by air-md03.mail.aol.com (v129.4) with ESMTP id MAILINMD031-8b7c4d49964123e; Wed, 02 Feb 2011 12:37:05 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mp03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9E07D380000A4; Wed, 2 Feb 2011 12:37:03 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Pkgc0-0004Sb-T9 for rs_out_1@blacksheep.org; Wed, 02 Feb 2011 17:35:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Pkgc0-0004SS-EN for rsgb_lf_group@blacksheep.org; Wed, 02 Feb 2011 17:35:24 +0000 Received: from nm2-vm0.bullet.mail.ukl.yahoo.com ([217.146.183.226]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Pkgbz-0005qa-Mx for rsgb_lf_group@blacksheep.org; Wed, 02 Feb 2011 17:35:24 +0000 Received: from [217.146.183.210] by nm2.bullet.mail.ukl.yahoo.com with NNFMP; 02 Feb 2011 17:35:18 -0000 Received: from [217.146.183.172] by tm3.bullet.mail.ukl.yahoo.com with NNFMP; 02 Feb 2011 17:35:18 -0000 Received: from [127.0.0.1] by omp1013.mail.ukl.yahoo.com with NNFMP; 02 Feb 2011 17:35:18 -0000 X-Yahoo-Newman-Id: 1331.44410.bm@omp1013.mail.ukl.yahoo.com Received: (qmail 4905 invoked from network); 2 Feb 2011 17:35:17 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=DKIM-Signature:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=0h50WTQlE1L0gN0EfxiTxAAXtIk1bNckThSdSlThTV4B58695DxTub0FZxvwWrpjNNBXPg6P+tkXDkn+Oju2wfADCd19yPxLmzitt7iZGm2j/lszofv1m35ANi7uwsAve0RbGJg4azfBsjr9kDaCnlrR5/oPjWwGWmVnJv31418= ; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btopenworld.com; s=s1024; t=1296668117; bh=kv19RzvleX5+wnF+/dBhmuky/3p+gZiKbEJah5AyceI=; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:Content-Transfer-Encoding:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=CsS/Daz1WQ4YPEs9rc0YmZ84ApzSC/ShmwRZCS8iPNBo8JxBHAjWr3CSJkjZPOLBNDRkYx9Cb8X7aX747+Ix5BSP9owgQcTAHqk3sggXKO715onlSSemMHZwtW0xzFLtax8CUDRpXYzbFzlbnktN0K0fPAmG17lxTyz94Za5OF4= Received: from JimPC (james.moritz@86.181.94.196 with login) by smtp817.mail.ukl.yahoo.com with SMTP; 02 Feb 2011 17:35:14 +0000 GMT X-Yahoo-SMTP: Cxhli3eswBD1ozmtAojhjrja86kWx0Qm9tycD5QR1DKWrOLgjJcXkw-- X-YMail-OSG: VTaBfs4VM1mdXxWNAU0o3B0SlJwkH1lrQptf.sLPdk6mWp2 fxh_5R2.XQkYRa..mOwofVGWOJO7qZiAaI2FNARTu.tak.cHPXOKagZlSLJP IwOn12hpCkni1TtQ_t7gPKwv_tvWVd0eFzw8TyBnDBz8JW4OVBbOixwzG6NG jDgMt3ixIyHgW4b1Y_gMh.dm5t5DKbKZdyFauegkOFUSVBh9t74FUCwdbJ1Q XzAshHtkF5JbhvdtXnmbzjDj9Y8ys88lcWRaZ.qQyYBGV7KfqxcaVtIIRuNu 2Gs0xBMrV4II1.IND X-Yahoo-Newman-Property: ymail-3 Message-ID: From: "James Moritz" To: References: <637365.87460.qm@web111904.mail.gq1.yahoo.com> <20110202134541.6F42428005E@for01.foreach.it> <126010.61255.qm@web111916.mail.gq1.yahoo.com> In-Reply-To: <126010.61255.qm@web111916.mail.gq1.yahoo.com> Date: Wed, 2 Feb 2011 17:35:16 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18263 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,UNPARSEABLE_RELAY=0.001 Subject: Re: LF: Dumb homebrewer - Advice needed Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-AUTHENTICATION: mail_rly_antispam_dkim-m252.1 ; domain : btopenworld.com DKIM : pass x-aol-sid: 3039ac1dc1474d49963f488d X-AOL-IP: 195.171.43.25 Dear Daniele, LF Group, The main effect of the twisted wires will be to add a small, fixed amount of capacitance - of the order of several pF for 10cm of wire. There will also be a slight increase in loss if PVC insulated wire is used, but probably only detectable at the upper end of the tuning range. If you are twisting the wires together for screening purposes, it would be better to use a short length of coax. Cheers, Jim Moritz 73 de M0BMU ----- Original Message ----- From: "Daniele Tincani" To: Sent: Wednesday, February 02, 2011 3:03 PM Subject: Re: LF: Dumb homebrewer - Advice needed Many thanks to Petr and Marco for their replies. I suppose the same considerations apply to stray capacitances? For example, connecting to the 30-350pF tuning capacitor by using a twisted pair of wires (10cm long) or running the same wires as separate as possible from each other has no relevance. Correct? Best regards Daniele