Please answer the question. I did not ask if it could be used on 500 at
present., but if so one would TX using MCW or Keyed Tone and old spy tric.
g3kev
----- Original Message -----
From: "Rik Strobbe" <[email protected]>
To: <[email protected]>
Sent: Tuesday, January 06, 2009 9:53 PM
Subject: Re: LF: Razor blade RX
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 <[email protected]>:
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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5:16 PM
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