[Boatanchors] Foxhole Radios... more

Sun, 17 Nov 2002 17:16:03 -0800 (PST)

Rodney,

Coal contains a lot of iron pyrite (fools gold) a sulphur crystal of iron (FeS2) this can act as a
detector, the coal acts as a nice carbon conductor.

Rodney
VK2KTZ 
--- "Duane Fischer, W8DBF" <[email protected]> wrote:
> I concur with Wayne here. Unless another metal was present, coal would not work.
> Depending on the type of coal, and its mineral and/or metal composition, would
> determine if it worked or not. 
>   ----------
> From: Horace W. Hall <[email protected]>
> To: 
> Cc: BOATANCHORS List <[email protected]>
> Subject: [Boatanchors] Foxhole Radios...  more
> Date: Sunday, November 17, 2002 2:22 AM
> 
> >
> The receiver was a crystal set. They tried a rusty razor blade as a
> detector which did not work.......but then tried a piece of coke (NOT
> Cocaine,  partly burnt coal) which worked.
> >
> 
> Coke is the product from burning coal, if I recall. Coal, like some other
> sedimentary minerals, often has metallic impurities like lead and arsenic.
> It is conceivable that in the burning and cooling process some such
> metallics crystalized in compounds that would work. Galena might even have
> been formed, since sulphur is also often present in coal and galena is a
> lead sulfide.
> 
> --Wayne
>   WB4OGM 
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