"Jim Douglas" wrote in message
...
If you find the SW kits too much check out a crystal radio, that would be
easier to build and possibly more exciting for the others checking out the
projects

Yes, I think a crystal radio would be far more interesting for a science
fair project, since a crystal radio does not need batteries or any form of
power other than the radio signals it receives.

I have a crystal set book in .pdf form on my webpage at
http://www.geocities.com/n2uhc/homebrew.html . I plan to build one but just
haven't had the time to sit down and work on it lately.


--
Tom Sevart N2UHC
Frontenac, KS
http://www.geocities.com/n2uhc

"Tom Sevart" ) writes:
"Jim Douglas" wrote in message
...
If you find the SW kits too much check out a crystal radio, that would be
easier to build and possibly more exciting for the others checking out the
projects

Yes, I think a crystal radio would be far more interesting for a science
fair project, since a crystal radio does not need batteries or any form of
power other than the radio signals it receives.

But it may work badly, or practically not at all, without a decent antenna.
Especially if the antenna is inside, and the building may have a lot of metal
to block the radio waves.

With something using gain elements can at least make an attempt at
compensating for both these factors.

Michael

I have a crystal set book in .pdf form on my webpage at
http://www.geocities.com/n2uhc/homebrew.html . I plan to build one but just
haven't had the time to sit down and work on it lately.


--
Tom Sevart N2UHC
Frontenac, KS
http://www.geocities.com/n2uhc