Return-Path: Received: from mtain-mh01.r1000.mx.aol.com (mtain-mh01.r1000.mx.aol.com [172.29.96.213]) by air-da10.mail.aol.com (v129.4) with ESMTP id MAILINDA103-86424d2c51bb215; Tue, 11 Jan 2011 07:48:59 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mh01.r1000.mx.aol.com (Internet Inbound) with ESMTP id E48E438000095; Tue, 11 Jan 2011 07:48:57 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Pcddr-0008Pf-TU for rs_out_1@blacksheep.org; Tue, 11 Jan 2011 12:48:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Pcddr-0008PW-Da for rsgb_lf_group@blacksheep.org; Tue, 11 Jan 2011 12:48:03 +0000 Received: from cavuit01.kulnet.kuleuven.be ([134.58.240.43]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Pcddp-0007UR-Rb for rsgb_lf_group@blacksheep.org; Tue, 11 Jan 2011 12:48:03 +0000 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit01.kulnet.kuleuven.be (Postfix) with ESMTP id 2E2657B804D for ; Tue, 11 Jan 2011 13:47:52 +0100 (CET) Received: from ICTS-S-HUB-N3.luna.kuleuven.be (icts-s-hub-n3.luna.kuleuven.be [10.112.9.13]) by smtps02.kuleuven.be (Postfix) with ESMTP id 2A4DCF3863 for ; Tue, 11 Jan 2011 13:47:52 +0100 (CET) Received: from ICTS-S-EXC2-CA.luna.kuleuven.be ([10.112.11.13]) by ICTS-S-HUB-N3.luna.kuleuven.be ([10.112.9.13]) with mapi; Tue, 11 Jan 2011 13:47:52 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Date: Tue, 11 Jan 2011 13:43:24 +0100 Thread-Topic: LF: RF ammeter question Thread-Index: AcuxiRy5UtIf6a9nRW++WBe3USZQ6gABAYWR Message-ID: References: <201101111216460781.5C69093B@smtp2.numeo.fr> ,<8C291320-2F81-4187-B4DB-04391A5BB3E8@numeo.fr> In-Reply-To: <8C291320-2F81-4187-B4DB-04391A5BB3E8@numeo.fr> Accept-Language: nl-NL, nl-BE Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: nl-NL, nl-BE MIME-Version: 1.0 X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: RE: LF: RF ammeter question Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable 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=TO_ADDRESS_EQ_REAL 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-sid: 3039ac1d60d54d2c51b94db1 X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) John, 1N5822 is a schottky rectifier diode, most of these are not so fast and ha= ve a large reverse capacitance (some 100pF) 73, Rik ________________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.or= g] namens John Rabson [john.rabson@numeo.fr] Verzonden: dinsdag 11 januari 2011 13:11 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: RF ammeter question Thank you everyone for your comments. I have found some 1N5822 Schottky= diodes so may try those. Chris: 1N4148 - yes please. John F5VLF On 11 Jan 2011, at 12:57CET, Julian Hardstone wrote: > In that quantity the 4148 costs less than one pence, so before you go bu= ying stamps let John pull a couple out of any scrap pcb he has lying about= - there's always some small glass diodes which would serve > - Julian G3TFR > > From: "Chris Trayner" > > > Hi John, > >> Not having any 1N4148 diodes I used 1N4007s. Might this be the cause= of the problem? > > I have a box of 5000 1N4148s at work. I might be able to spare you the= odd one or two ;-) > > 73, > Chris G4OKW > >