How to Make a Foxhole Radio
1 Dec, 2009 | Posted by nancyperez | under Podcasting (Audio)
During World War II, GIs in the field built really amazing simple radios to listen too. These were made with materials that they could get their hands on and were small enough to carry around in a big pocket. You can modify this design if you want to set it up so that it’s tuneable too! To see all the plans, go to makezine dot com slash podcast!
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BragiBoms | December 1st, 2009 at 11:10 am #
BULLSHIT!!!!!!!!!!!
BoscoWins | December 1st, 2009 at 11:10 am #
How long would that 120 times around the coil translate to?
yourpersonalspammer | December 1st, 2009 at 11:10 am #
@anorwood84 tyvm! very well explained!
anorwood84 | December 1st, 2009 at 11:10 am #
Like AC voltage, Radio waves are alternating as well… As with any alternating current, they travel to areas of smaller potential. So for example, Radio Waves being picked up by the antenna have a higher potential than ground. So the current travels from the antenna through the coil, catwhisker, through the earpiece, then to the ground.
ericericeric833 | December 1st, 2009 at 11:10 am #
i got so lucky i listned to 103.5 and in a walk in a park i listened to 101.1 they have realy good songs
malgray2 | December 1st, 2009 at 11:10 am #
Yes the number of coils will affect the tuning frequency.
Using a ground maximizes the potential difference between the radio wave and ground. In other words it makes the signal bigger.
jkdaniels88 | December 1st, 2009 at 11:10 am #
Does anyone know if the amount of coils change the radio station you pick up or the quality or anything at all?
yourpersonalspammer | December 1st, 2009 at 11:10 am #
why do I need a ground?
samalayork | December 1st, 2009 at 11:10 am #
simple things that make you think and use your brain cells… what can you modify to receive shortwave broadcasts? thanks!
ultrajoe001 | December 1st, 2009 at 11:10 am #
make me one
prleLTD | December 1st, 2009 at 11:10 am #
HEY does the gounge of the coil matters ???
pufla | December 1st, 2009 at 11:10 am #
wtf where do i get a cat whisker?
mossmon | December 1st, 2009 at 11:10 am #
where is the pdf ur talking about?
aenigmate | December 1st, 2009 at 11:10 am #
This is cool.
tbsys31061 | December 1st, 2009 at 11:10 am #
am
lalalala
TheWykis | December 1st, 2009 at 11:10 am #
NICE!!! Gona make it someday…
DevilRox80 | December 1st, 2009 at 11:10 am #
hey… is fm or am
respaldoscero | December 1st, 2009 at 11:10 am #
Great; clap clap clap! Bravo! Great!
field16 | December 1st, 2009 at 11:10 am #
The pencil lead / razor blade combo is a basic diode, allowing the current to flow in only one direction.
EnlightenedPerson | December 1st, 2009 at 11:10 am #
Ipod headphone wont work. Requires too much power.
drpeppero3 | December 1st, 2009 at 11:10 am #
howard stern?
sniegol445 | December 1st, 2009 at 11:10 am #
the power ????
multigunlover | December 1st, 2009 at 11:10 am #
not neaded
but it is nice to have
themeddleman | December 1st, 2009 at 11:10 am #
Sounds really good! Sounds also that the fire department is already nearby!
ajboomboom5 | December 1st, 2009 at 11:10 am #
this video is not descriptive enough were do you put the antena and were do you put the - + for the