Supplies need to make a fox hole radio:
- PVC pipe
- Copper wire
- Screws
- Screw driver
- Paper clips
- Headphone jack
- Razor blade
- Pencil head
- Small board
- Sandpaper
- Make sure all all coating of the copper wire is sanded off where metal meats metal.
- Make sure all wrappings are tight
- Make sure pencil is sharp
- Once built move the pencil around the razor blade and the paperclip on the PVC pipe until you pick up a signal.
1. We started off by blueing the razor blade and screwing it to the board.
2. Next we put two screws on opposite ends but across from eachother into the PVC pipe.
3. We then had to wrap the PVC pipe with the copper wire and wrap the wire around the screws
leaving about one inch on one side and five inches on another.
4. You then take the five inch side and bring it straight down and wrap it around one screw and
then around the screw holding the razor blade down.
5. Next take a paper clip and wrap one end around a screw that is screwd into the board and take
the other end and shove it into the non-sharpened end of the pencil tip. (Make sure the screw is
screwed down close enough to where the pencil tip can touch the razor blade and the paper clip
is shoved into the lead not the wood.)
6. Bring a copper wire of the same screw as on the paperclip to you head phone jack and connect
it.
7. Next take a paperclip and wrap it around another screw close enough for the unfolded paper
clip to rub upon the copper wire wrapped around the PVC pipe.
8. Take a copper wire off of that same screw and connect into the other end of the headphone jack
and around a screw.
9. Leave a loop with the copper wire around the last screw in order to wrap the ground wire
around.
cool, can you change stations?
ReplyDeletehey, what do we do with the 1 inch end of the wire wrapped around the PVC pipe?
ReplyDeleteI just made this and it didn't work. Why?
ReplyDeleteYou will need to be close , say a few miles, of an AM radio station. You will need an old ! High impedance earpiece. Modern earbuds won't work. And you need patience...
DeleteSpecial Note: Posting of this document on a DoE website does not imply approval or disapproval by the Department of Energy. This work is made available to illustrate innovative energy research by multiple researchers involving new concepts. Scientific method requires replication and independent test and verification, and an additional research prototype build-up for those purposes is presently underway by the authors.
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Thanks in advance.
ReplyDeleteYour instruction says all coating should be sanded off. I tried with magnetic wire that is insulated copper wire. And there is no buzz anywhere. The whole set up is dead and no sound at all.
Also you do not seem to have an antenna. Dont we need one?
Finally, where do we get a high impedance headset?
Wat the diameter of the PVC pipe?
ReplyDelete