[CW] OT: foxhole radios

[Jude DaShiell]

Hi David,
That's all the information I got on foxhole radios some of them used
graphite pencils and razor blades.  Two different kinds of metal in
contact certainly would produce electricity as illustrated when a N.A.S.A.
contractor figured out the specification writers requiring only one kind
of metal for those Mars Rovers was wrong and used two different metals.
The batteries kept recharging and N.A.S.A. got lots more data back on Mars
than they expected thanks to that contractor correcting that mistake.



Jude <jdashiel at panix dot com> "There are four boxes to be used in
defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)

.

On Mon, 24 Oct 2022, D.J.J. Ring, Jr. wrote:

> That's a good idea, Jude.
>
> Around the world nations are shutting down their Medium Wave broadcast
> stations.
>
> I think it is stupid for the reasons you mention.
>
> I guess you're asking us to paint a picture of how to make a simple crystal
> radio set.
>
> I think some of the foxhole radios used razor blades and graphite pencils.
>
> We've got a great group here, I'm sure we can help you especially when your
> helping others.
>
> 73
>
> DR
>
> David N1EA
>
> On Sun, Oct 23, 2022, 11:12 PM Jude DaShiell <jdashiel at panix.com> wrote:
>
> > I have been totally blind from birth so web pages with pictures on them
> > are useless for me since the screen readers don't speak pictures.
> > If I can learn to build a foxhole radio to the point that it works I am in
> > contact with several people who have Africa as their native continent and
> > I intend to share the know-how with them so they can share that when they
> > return to their countries for the times when families and friends for
> > whatever reason can't afford to buy new batteries.  In that way they may
> > be able to listen to a different type of radio.  Do any in this list know
> > how to build one of these that can get more than a single frequency since
> > I don't know broadcasting ranges in Africa and would be willing to share
> > your information?
> >
> >
> >
> > Jude <jdashiel at panix dot com> "There are four boxes to be used in
> > defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author, 1940)
> >
> > .
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> > =30=
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>