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AM Radio Kits
- Thread starter NorthStar
- Start date
If you google you will see lots of them out there.
Peebles Originals ~ Crystal Radio Kits, Tube Radio Kits and more!
Peebles Originals ~ Crystal Radio Kits, Tube Radio Kits and more!
I remember back in the day when I was a cub scout. I built my own radio out of a toilet paper tube and some junk wire - in a cigar box. The tough part was getting/finding a piece of Gallium. Capacitor was made from tin foil and wax paper. All of the instructions for this project came right out of my scout handbook. I then used a safety pin as the cat whisker. Boy, was I surprised when I made it work!
My first kit was the old Science Fair shortwave from Radio Shack back in the late 70's it was great.
My last was the Tentec 1254 and I have to say it was awesome, I would love to build another for the experience as well as having a decent extra receiver in the shack.
My last was the Tentec 1254 and I have to say it was awesome, I would love to build another for the experience as well as having a decent extra receiver in the shack.
Gallium? Germanium I can see, but gallium??
I guess gallium would be usable for the "crystal" (the safety pin catwhisker was touching the gallium, right?). I used to use a piece of iron pyrites (fools gold) for my crystal - I had a piece about the size of a large marble, and it was very responsive.
These days, grab a 1N34 from RadShack and go with it.
Where did you find the gallium?
I'm with you Pat. Pure gallium will melt when held in your hand. I have heard of using germanium but never gallium.
Gee Robb, if you mixed that gallium with some arsenic you could have made a gallium-arsenide FET (Ga-As FET) preamp for your crystal set.
I'm with you Pat. Pure gallium will melt when held in your hand. I have heard of using germanium but never gallium.
Gee Robb, if you mixed that gallium with some arsenic you could have made a gallium-arsenide FET (Ga-As FET) preamp for your crystal set.
Hey, making/building my first radio at age 9 makes me the original radio operator!
Next step: An Elecraft K-3!
Gee Robb, if you mixed that gallium with some arsenic you could have made a gallium-arsenide FET (Ga-As FET) preamp for your crystal set.
Might need one of those nifty cauldrons to mix the stuff up. Try diagonalley dot com
Tried to enter an actual web address, but the post comes up "Website Under Construction". Who knew?
Modern Crystal AM radio schematic.
Hello Group,
I notice that you all have this thread under control.
Here is my 2 cents worth. I scanned this circuit from
my Science Fair 200 in one Electronics lab.
These are very modern common components.
http://home.inreach.com/mikedh/screenshots/crystalradio01.jpg
Hello Group,
I notice that you all have this thread under control.
Here is my 2 cents worth. I scanned this circuit from
my Science Fair 200 in one Electronics lab.
These are very modern common components.
http://home.inreach.com/mikedh/screenshots/crystalradio01.jpg