[Milsurplus] Foxhole Radio - conclusion

[J. Forster]

I'd really like to see someone do a V-I plot of the razor blade diode. I'd
do it, but don't have a suitable blade. It's easy enough to do, even w/o a
dedicated curve tracer.

It would also be interesting to see a similar plot of a "cat's whisker".

I suspect they would be lousey diodes, even compared to a WW II vintage
RADAR mixer like a 1N23.

Best,

-John

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




> 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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