| Author |
Message |
    
That Elco guy (Unregistered Guest)
Unregistered guest
| | Posted on Wednesday, December 01, 2004 - 6:17 pm: | 
|
Hi Guys...
I found this while doing some research for a ham project to show how to make a radio out of scraps.
Its called a Foxhole Radio. To make it you use a bit of wood, some wire, and old razor blade, a safety pin, the nub of an old pencil, an old set of headphones and a few thumb tacks. Battery NOT required. No transistors, no resistors, no diodes. Just stuff you can find in your house. The Delux version requires only that you add a small rectangular piece of metal (like a tin can).
Perhaps you would like to try it and let us know how it works....
http://members.aol.com/djadamson7/articles/foxhole.html
ENJOY the Ancient Radio Times.
That ELCO Guy. |
Bruce
Senior Member
Username: Bruce
Post Number: 1829
Registered: 9-2003
| | Posted on Wednesday, December 01, 2004 - 7:18 pm: |
|
Elco
Building crystal radios is a hobby of mine i have I've been a member of this groupe for years .....
http://www.midnightscience.com/ |
Crafter
Senior Member
Username: Crafter
Post Number: 1052
Registered: 12-2002
| | Posted on Thursday, December 02, 2004 - 1:15 am: |
|
Like the ole ink pen radio, no batteries where needed. |
Coyote
New member
Username: Coyote
Post Number: 9
Registered: 11-2004
| | Posted on Thursday, December 02, 2004 - 11:10 am: |
|
Gonna have to build one of them just for fun. (c: |
Bruce
Senior Member
Username: Bruce
Post Number: 1834
Registered: 9-2003
| | Posted on Friday, December 03, 2004 - 9:32 am: |
|
coyote you will find that the crystal radio socity web site has a lot of good information. Also remember you need a good earphone and at least 50 foot of antenna for it to work. |
Coyote
Junior Member
Username: Coyote
Post Number: 10
Registered: 11-2004
| | Posted on Friday, December 03, 2004 - 2:41 pm: |
|
Thanks Bruce, I looked around that site and your right.. very interesting. I also ran a search on foxhole radio and found several other interesting sites about antique radios as well.
And i'd also like to thank eveyone on here for all the great info on eveything you could think of have'n to do with radio.
Thanks to All!
73 - CEF443 - Tennessee Coyote |
Drcat
Junior Member
Username: Drcat
Post Number: 12
Registered: 7-2004
| | Posted on Thursday, December 09, 2004 - 10:43 pm: |
|
I once built a little cystal radio kit that I bought from a science store near the Museum of Natural History in Manhattan. -The store is not there anymore.
It had a coil and diodes that I had to sodder. And the old fashion off-white ear plug had something in it. I am not sure if that was the cystal.
Also a little plasic & metal square device with wheels that you always see in radios was part of it. I forgot what their called.
Then I had to run a long wire around my room and the funny thing was that I had to run another wire to either a cold water pipe or the pipe steam. (I think this was for ground & power because when I would disconnect it the radio was dead. So you could only imagine how important ground is for radio.)
This would be a great radio to have durring a black out!!!!
Without batteries the dorn thing worked. Some nights the signals were very strong.
I was picking up 3 local NYC stations on the medium-wave. WWOR 710 am, WABC 770 am & WNYC 820 am.
I would like to know how could I use this same radio system to pick up other radio meters or bands? |
