Return-Path: Received: from mtain-df02.r1000.mx.aol.com (mtain-df02.r1000.mx.aol.com [172.29.64.214]) by air-ma08.mail.aol.com (v129.4) with ESMTP id MAILINMA084-b5334d2c55a012; Tue, 11 Jan 2011 08:05:36 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7AC203800008A; Tue, 11 Jan 2011 08:05:35 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Pcdtu-0000DM-8H for rs_out_1@blacksheep.org; Tue, 11 Jan 2011 13:04:38 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Pcdtt-0000DC-Jg for rsgb_lf_group@blacksheep.org; Tue, 11 Jan 2011 13:04:37 +0000 Received: from imr-db03.mx.aol.com ([205.188.91.97]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Pcdts-0007fC-Jg for rsgb_lf_group@blacksheep.org; Tue, 11 Jan 2011 13:04:37 +0000 Received: from imo-ma02.mx.aol.com (imo-ma02.mx.aol.com [64.12.78.137]) by imr-db03.mx.aol.com (8.14.1/8.14.1) with ESMTP id p0BD4KfZ017655 for ; Tue, 11 Jan 2011 08:04:20 -0500 Received: from MarkusVester@aol.com by imo-ma02.mx.aol.com (mail_out_v42.9.) id l.bc5.737f0881 (37664) for ; Tue, 11 Jan 2011 08:04:16 -0500 (EST) Received: from smtprly-dd02.mx.aol.com (smtprly-dd02.mx.aol.com [205.188.84.130]) by cia-mb07.mx.aol.com (v129.7) with ESMTP id MAILCIAMB076-d3f04d2c554d25; Tue, 11 Jan 2011 08:04:16 -0500 Received: from webmail-d042 (webmail-d042.sim.aol.com [205.188.181.83]) by smtprly-dd02.mx.aol.com (v129.7) with ESMTP id MAILSMTPRLYDD024-d3f04d2c554d25; Tue, 11 Jan 2011 08:04:13 -0500 References: <201101111216460781.5C69093B@smtp2.numeo.fr> To: rsgb_lf_group@blacksheep.org Date: Tue, 11 Jan 2011 08:04:13 -0500 In-Reply-To: <201101111216460781.5C69093B@smtp2.numeo.fr> X-MB-Message-Source: WebUI MIME-Version: 1.0 From: Markus Vester X-MB-Message-Type: User X-Mailer: AOL Webmail 33069-STANDARD Received: from 194.138.39.54 by webmail-d042.sysops.aol.com (205.188.181.83) with HTTP (WebMailUI); Tue, 11 Jan 2011 08:04:13 -0500 Message-Id: <8CD7FA72DB66647-FE4-BB43@webmail-d042.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: MarkusVester@aol.com X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,FORGED_AOL_TAGS=0.281,HTML_MESSAGE=0.001,UNPARSEABLE_RELAY=0.001 Subject: Re: LF: RF ammeter question Content-Type: multipart/alternative; boundary="--------MB_8CD7FA72DBB2909_FE4_1D17B_webmail-d042.sysops.aol.com" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=FORGED_AOL_TAGS,HTML_30_40, HTML_FONTCOLOR_UNKNOWN,HTML_MESSAGE 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: 3039ac1d40d64d2c559f5399 X-AOL-IP: 195.171.43.25 ----------MB_8CD7FA72DBB2909_FE4_1D17B_webmail-d042.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" John, the 1N4007 can actually be useful as a varicap replacement to pull= an oscillator.=20 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: John RABSON An: rsgb_lf_group@blacksheep.org Verschickt: Di., 11. Jan. 2011, 12:16 Thema: LF: RF ammeter question LF, I have built the fullwave rectified version of the design shown on page 10= .33 of=20 he RSGB Handbook 10th edition. It reads correctly at 25kHz but only show= 1/3=20 f the correct value at 136.=20 Not having any 1N4148 diodes I used 1N4007s. Might this be the cause of= the=20 roblem? 73 ohn F5VLF ----------MB_8CD7FA72DBB2909_FE4_1D17B_webmail-d042.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
John, the 1N4007 can actually be useful as a varicap replac= ement to pull an oscillator. 
73, Markus (DF6NM)

-----Urspr=C3=BCngliche Mitteilung-----
Von: John RABSON <john.rabson@numeo.fr>
An: rsgb_lf_group@blacksheep.org
Verschickt: Di., 11. Jan. 2011, 12:16
Thema: LF: RF ammeter question

LF,

I have built the fullwave rectified version of the design shown on page 10=
.33 of=20
the RSGB Handbook 10th edition.  It reads correctly at 25kHz but only show=
 1/3=20
of the correct value at 136.=20

Not having any 1N4148 diodes I used 1N4007s.  Might this be the cause of=
 the=20
problem?

73
John F5VLF
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