Message-ID: <20090106225336.ujvel5oa3i84okkc@webmail4.kuleuven.be>
Date: Tue, 06 Jan 2009 22:53:36 +0100
From: Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: Razor blade RX
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Mal,

I did build a "crystal radio" with a razor blade as detector when I  
was 14 years old.
It had to be rusty to work properly and even then it was a very poor detector.
And it is an AM detector, so not useable for ham signals on 500kHz.

73, Rik  ON7YD - OR7T


Quoting mal hamilton <g3kevmal@talktalk.net>:

> 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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