 |
Search Sci.Electronics.Basics |
|
|
|
|
|
|
 |
|
|
Sci.Electronics.Basics -> Re: FM Crystal Radio
There are 2 messages in this thread.
You are currently looking at messages 1 to 2.
|
Author: MikeDate: 20:31 23-12-07
|
|
<snip>
>
>That's exactly the same circuit I was looking at. Uses a small
>diameter coil so I can build a set into a plastic project box. How
>many meters of wire would a need for the coil? I plan on winding it on
>a 4 inch long PVC pipe.
Well, let's see. 1.5" X Pi X 65 turns = 306" and 306/39.34 = 7.8M. Make it 9M
to
allow for the taps and lead wires.
You'll have to plug in the actual OD of your PVC.
Mike
"The scientist is possessed by the sense of universal
causation...His religious feeling takes the form of
rapturous amazement at the harmony of natural law,
which reveals the intelligence of such superiority
that, compared with it, systematic thinking and acting
of human beings is an utterly insignificant reflection."
Albert Einstein (theoretical physicist)
|
|
|
|
Author: Bob MastaDate: 08:38 24-12-07
|
|
On Sun, 23 Dec 2007 20:31:05 -0500, Mike <nomtrxspam@comcast.net>
wrote:
>
>"The scientist is possessed by the sense of universal
>causation...His religious feeling takes the form of
>rapturous amazement at the harmony of natural law,
>which reveals the intelligence of such superiority
>that, compared with it, systematic thinking and acting
>of human beings is an utterly insignificant reflection."
>Albert Einstein (theoretical physicist)
Lest anyone be mislead into thinking that the above
edited quote indicates that Einstein was a believer,
check out:
http://www.celebatheists.com/?title=Albert_Einstein
The full passage containing the quote is at:
http://religion.beloblog.com/archives/2007/04/religion_sneak_peek_einstein_a.html
Best regards,
Bob Masta
DAQARTA v3.50
Data AcQuisition And Real-Time Analysis
www.daqarta.com
Scope, Spectrum, Spectrogram, FREE Signal Generator
Science with your sound card!
|
|
|
|
1 |
|
|
|
|
Contact | Electronic Portal
|
|
|
