Asimov wrote:
"Tim Wescott" bravely wrote to "All" (05 Apr 05 09:26:07)
--- on the heady topic of " Crystal radio"

TW From: Tim Wescott
TW Xref: aeinews rec.radio.amateur.homebrew:9149

TW KA6PNL wrote:

Hi I have a friend that son wants to build a crystal radio. I seam to
remember that we grew our own crystal back in the early 60 any help?? Also
where can I find a 1n34 quick have 2 weeks for his science fair.


TW A silicon diode will work, it won't be as sensitive but you can get
TW one at the local Radio Shack (they carry germanium diodes off and on,
TW so they may have some).

TW If you're using germanium diodes get some spares -- I've found them
TW very susceptible to lightning strikes, at least in the circuit that my
TW son and I built.


Why bother? Get a solar cell and power a radio with it. There is
more than 900watts/metre^2 free energy right outside the window.
(mumbling something about "idiots"...)

'cause crystal radios are more fun, and when your 10-year-old puts one
together he or she can understand each and every part in it (those
charge regulator IC's are kinda hard to grok when you're not firm on how
a diode works).

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Tim Wescott wrote:


charge regulator IC's are kinda hard to grok when you're not firm on how
a diode works).


Help out an oldster. What the heck does "grok" mean?

-Bill

On Sat, 09 Apr 2005 00:35:11 -0400, Bill M
wrote:

Tim Wescott wrote:

charge regulator IC's are kinda hard to grok when you're not firm on how
a diode works).


Help out an oldster. What the heck does "grok" mean?

-Bill

A word from Robert Heinlein's 1961 novel "Stranger in a Strange Land".
Rough meaning is to understand thoroughly and profoundly.

"As one character from Heinlein's novel says:

'Grok' means to understand so thoroughly that the observer becomes
a part of the observed - to merge, blend, intermarry, lose identity in
group experience. It means almost everything that we mean by religion,
philosophy, and science - and it means as little to us (because we are
from Earth) as color means to a blind man. "

From:
http://whatis.techtarget.com/definition/0,,sid9_gci212216,00.html

Happy trails,
Gary (net.yogi.bear)
--
At the 51st percentile of ursine intelligence

Gary D. Schwartz, Needham, MA, USA
Please reply to: garyDOTschwartzATpoboxDOTcom

Gary S. wrote:

On Sat, 09 Apr 2005 00:35:11 -0400, Bill M
wrote:


Tim Wescott wrote:


charge regulator IC's are kinda hard to grok when you're not firm on how
a diode works).


Help out an oldster. What the heck does "grok" mean?

-Bill


A word from Robert Heinlein's 1961 novel "Stranger in a Strange Land".
Rough meaning is to understand thoroughly and profoundly.

"As one character from Heinlein's novel says:

'Grok' means to understand so thoroughly that the observer becomes
a part of the observed - to merge, blend, intermarry, lose identity in
group experience. It means almost everything that we mean by religion,
philosophy, and science - and it means as little to us (because we are
from Earth) as color means to a blind man. "

From:
http://whatis.techtarget.com/definition/0,,sid9_gci212216,00.html

Happy trails,
Gary (net.yogi.bear)


Well THAT explains it!

Thanks,

-Bill M

Bill M wrote:
Gary S. wrote:

On Sat, 09 Apr 2005 00:35:11 -0400, Bill M
wrote:


Tim Wescott wrote:


charge regulator IC's are kinda hard to grok when you're not firm on
how a diode works).


Help out an oldster. What the heck does "grok" mean?

-Bill



A word from Robert Heinlein's 1961 novel "Stranger in a Strange Land".
Rough meaning is to understand thoroughly and profoundly.

"As one character from Heinlein's novel says:

'Grok' means to understand so thoroughly that the observer becomes
a part of the observed - to merge, blend, intermarry, lose identity in
group experience. It means almost everything that we mean by religion,
philosophy, and science - and it means as little to us (because we are
from Earth) as color means to a blind man. "

From:
http://whatis.techtarget.com/definition/0,,sid9_gci212216,00.html

Happy trails,
Gary (net.yogi.bear)



Well THAT explains it!

And now you grok!

- Mike KB3EIA -