Return-Path: Received: from rly-me09.mx.aol.com (rly-me09.mail.aol.com [172.20.83.43]) by air-me09.mail.aol.com (v121_r4.4) with ESMTP id MAILINME094-9d84963ec6d1e9; Tue, 06 Jan 2009 18:42:47 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-me09.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINME094-9d84963ec6d1e9; Tue, 06 Jan 2009 18:42:38 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LKLZ2-0007Or-0F for rs_out_1@blacksheep.org; Tue, 06 Jan 2009 23:42:24 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LKLZ1-0007Oi-EG for rsgb_lf_group@blacksheep.org; Tue, 06 Jan 2009 23:42:23 +0000 Received: from mailout03.t-online.de ([194.25.134.81]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LKLYz-0005NG-W4 for rsgb_lf_group@blacksheep.org; Tue, 06 Jan 2009 23:42:23 +0000 Received: from fwd08.aul.t-online.de by mailout03.sul.t-online.de with smtp id 1LKLYy-0003BR-04; Wed, 07 Jan 2009 00:42:20 +0100 Received: from [192.168.2.22] (ThmasUZZghS6bvHHBwHiNqwGQ-zFpqdHHgx66ScG4R3x74CY1lgK7M04CoOMrTqQwq@[93.196.40.251]) by fwd08.t-online.de with esmtp id 1LKLYw-0Bsx4S0; Wed, 7 Jan 2009 00:42:18 +0100 MIME-Version: 1.0 From: hajo.brandt.dj1zb@t-online.de To: X-Mailer: T-Online eMail 6.06.0002 Date: 06 Jan 2009 23:42 GMT Message-ID: <1LKLYw-0Bsx4S0@fwd08.t-online.de> X-ID: ThmasUZZghS6bvHHBwHiNqwGQ-zFpqdHHgx66ScG4R3x74CY1lgK7M04CoOMrTqQwq X-TOI-MSGID: 831e9ee3-6507-49b2-9f80-7972c14ac3f0 X-Karma: 0: X-Spam-Score: 1.0 (+) X-Spam-Report: autolearn=disabled,HTML_FONT_FACE_BAD=0.452,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55,UNPARSEABLE_RELAY=0.001 Subject: Re: LF: Razor blade RX .... Try a Cohere? Content-Type: Multipart/Alternative; Boundary="__Next_1231285334_Part312__" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.1 required=5.0 tests=CLICK_BELOW,HTML_40_50, HTML_FONT_FACE_BAD,HTML_LINK_CLICK_HERE,HTML_MESSAGE,NO_REAL_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-IP: 193.82.116.20 --__Next_1231285334_Part312__ Content-Type: Text/Plain; Charset="ISO-8859-1" Content-Transfer-Encoding: 8Bit No problem! Use MCW! Has been typical for 500 kHz. 73 DJ1ZB "M0FMT" schrieb: Hi Mal and LF I am disapointed in you Mal to be considering an envelope detector. A true CW man, I would have thought, should only entertain the use of a Cohere detector! Having played with them, I was surprised how well they work over a range 136kc/s to 433mc/s (the extent of my power RF O/P) probably work over a much lager range of frequencies but not tested by me. http://home.earthlink.net/~lenyr/coherer.htm 73 pefmt --- On Tue, 6/1/09, mal hamilton wrote: From: mal hamilton Subject: Re: LF: Razor blade RX To: rsgb_lf_group@blacksheep.org Date: Tuesday, 6 January, 2009, 9:21 PM Your own cct and ideas and the headphone construction. Not info from the web. g3kev ----- Original Message ----- From: riese-k3djc@juno.com To: rsgb_lf_group@blacksheep.org Sent: Tuesday, January 06, 2009 7:58 PM Subject: Re: LF: Razor blade RX 310113517964 E bay too On Tue, 6 Jan 2009 18:00:45 -0000 "mal hamilton" writes: Since I mentioned a Razor blade and fence wire RX a while back I have had several requests for a circuit. To give others the opportunity to submit a cct I will await replies. This method was used successfully at Coldiz and other POW camps to receive BBC broadcasts. Let us know how you would approach the subject. This is applicable to MF/LF since the broadcasts at the time were receicved on these bands. Build one and have a QSO using this RX g3kev ____________________________________________________________ Fashion Design Education - Click Here! No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.3/1877 - Release Date: 1/5/2009 7:20 PM --__Next_1231285334_Part312__ Content-Type: Text/HTML; Charset="ISO-8859-1" Content-Transfer-Encoding: 8Bit T-Online eMail  No problem! Use MCW! Has been typical for 500 kHz.

73 DJ1ZB


  "M0FMT" <m0fmt@yahoo.co.uk> schrieb:
Hi Mal and LF
 
I am disapointed in you Mal to be considering an envelope detector. A true CW man, I would have thought, should only entertain the use of a Cohere detector!
 
Having played with them, I was surprised how well they work over a range 136kc/s to 433mc/s (the extent of my power RF O/P) probably work over a much lager range of frequencies but not tested by me.
 
 
73 pefmt


 


--- On Tue, 6/1/09, mal hamilton <g3kevmal@talktalk.net> wrote:
From: mal hamilton <g3kevmal@talktalk.net>
Subject: Re: LF: Razor blade RX
To: rsgb_lf_group@blacksheep.org
Date: Tuesday, 6 January, 2009, 9:21 PM

Your own cct and ideas and the headphone construction. Not info from the web.
g3kev
 
----- Original Message -----
Sent: Tuesday, January 06, 2009 7:58 PM
Subject: Re: LF: Razor blade RX

310113517964   E bay too
 
On Tue, 6 Jan 2009 18:00:45 -0000 "mal hamilton" <g3kevmal@talktalk.net> writes:
Since I mentioned a Razor blade and fence wire RX a while back I have had several requests for a circuit. To give others the opportunity to submit a cct I will await replies. This method was used successfully  at Coldiz and other POW camps to receive BBC broadcasts.
Let us know how you would approach the subject. This is applicable to MF/LF since the broadcasts at the time were receicved on these bands.
Build one and have a QSO using this RX
g3kev
 
 


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Fashion Design Education - Click Here!

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Checked by AVG - http://www.avg.com
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