[Milsurplus] Foxhole Radio - conclusion

[J. Forster]

As I remember, Galena is lead ore and you extract the lead by roasting it.
The sulpher goes up the stack as SO2.

http://en.wikipedia.org/wiki/Lead(II)_sulfide

Given that, it is unsurprising you were unable to synthesize it by heating
the two components together.

-John

=============



> de Clete
> It works with the point of the safety pin gently
> touching the blue on the blade.
> Are blue blades available?
> I tried this:   One detector is made of Carborundum,
> And the High School Encyclopedia said that was
> what Stone Masons used to smooth up concrete.
> I broke off a small piece, but it didn't work.
> Then, Galena is made of Lead and Sulfur.  Mixing
> the two in the basement furnace melted one, and
> burnt the other.  Making Galena didn't work, either.
> The razor blade and safety did, but touchy.
> 73  Clete
> ++++++++++++++++++++++++++++++++++++
>
> On 8/6/2012 11:58 AM, mstangelo at comcast.net wrote:
>> Has anyone ever tried building one of these foxhole radios?
>>
>> I started my journey inot electronics, like may others, by building
>> crystal radios.
>>
>> I got my crystals from a neighbor who was an electronic technician . My
>> first crystal was in a bakelite case. I forget the number but I still
>> have it
>> somewhere. The tapped coil was built on a schellaced toilet paper roll.
>> My headset was a high impedance crystal earpiece.
>>
>> I lived in Queens New York at the time and could easily pick up WCBS
>> 880.
>>
>> I read about the foxhole radio which used a Gillette Blueblade and the
>> pencil graphite as a detector. The graphite was held with a safety pin.
>> I got hold of the blade and graphite and tried it but could never get it
>> to work.
>>
>> Has anyone hasd success with this type of detector? If I could get my
>> hands on a Blueblade I'd try it again.
>>
>> Mike N2MS
>>
>>
>> ----- Original Message -----
>> From: Hue Miller <kargo_cult at msn.com>
>> To: milsurplus at mailman.qth.net, tetrode at googlegroups.com,
>> Wireless-Set-No19 at yahoogroups.com
>> Sent: Sun, 05 Aug 2012 22:54:12 -0000 (UTC)
>> Subject: Re: [Milsurplus] Foxhole Radio - conclusion
>>
>> The opinion was also expressed that soldiers have often have time on
>> their
>>
>> hands, where boredom is an issue: thus, they would relish some activity
>>
>> like the opportunity to build 'foxhole radios'.
>>
>> <snip>
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>
>
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