Comments on: Crystal radio built from modern junk

By: moog bushing

moog bushing — Wed, 09 Dec 2009 19:38:31 +0000

The moog suspension bushing was a nice choice.

By: Modern Metal Art

Modern Metal Art — Fri, 20 Mar 2009 08:22:01 +0000

Wow great work!!

Just would like to add that crystal radio is one of those “must-have-must-make” projects that most tinkerers at some point tackle, whether it be as a kid from a kit or like this.

By: Sum Dum Guy

Sum Dum Guy — Fri, 18 Nov 2005 02:34:31 +0000

NICE !! I must be quite the nerd, ’cause I’m actually excited about maybe building one of these myself..

By: Fred

Fred — Thu, 17 Nov 2005 18:00:46 +0000

I want one !!

By: Fred

Fred — Thu, 17 Nov 2005 18:00:33 +0000

I want one !!

By: strider_mt2k

strider_mt2k — Thu, 17 Nov 2005 15:39:00 +0000

That is nothing less than the art of radio right there.

just beautiful.

By: mewse

mewse — Thu, 17 Nov 2005 04:12:59 +0000

brasky:

from the bottom of the article:

This article was originally prepared for, and appeared in, the newsletter of the Xtal Set Society. Check them out!

By: bill brasky

bill brasky — Thu, 17 Nov 2005 02:13:16 +0000

I saw something very similar to this project, a crystal radio made from an empty cd spindle, in the March 2005 issue of The Xtal Radio Set Society. You can read the issue at http://www.midnightscience.com/comp.html

By: Wim L

Wim L — Thu, 17 Nov 2005 01:35:19 +0000

Also check out Harry Lythall’s coffee-can-cavity-resonator “crystal set”. Works from a few hundred MHz up to 1GHz, try that with a traditional tank circuit!

By: h. p. friedrichs

h. p. friedrichs — Thu, 17 Nov 2005 01:17:06 +0000

to theblunderbuss:
…i mention on my website that i have tuned the radio described to a strong local station and and collected enough energy from a fairly short antenna to actually light a red led. alternately, when used with headphones, the volume can be loud enough to make programming audible with the phones simply lying on the table. this is not stereo-level volume, to be sure, but a surprising loudness just the same.
hpf

By: monster

monster — Thu, 17 Nov 2005 01:16:20 +0000

whan the radio has a properly tuned tank circuit it need no power, other than amplification purposes if you need it loud

By: theblunderbuss

theblunderbuss — Wed, 16 Nov 2005 23:38:45 +0000

…then again, the ones I’ve seen weren’t as advanced and certainly did not have capacitors.
Stupid kits. grr.

By: theblunderbuss

theblunderbuss — Wed, 16 Nov 2005 23:31:37 +0000

But does it work?
I’ve never seen a crystal radio that manages to convert the microwatts it pulls from the air into audible sound.

By: alex

alex — Wed, 16 Nov 2005 22:00:39 +0000

Thought some people on this page might like this :-)

http://sfbayarea.craigslist.org/about/best/sfo/66795671.html

By: steve

steve — Wed, 16 Nov 2005 21:58:42 +0000

A crystal radio is one of those “must-have-must-make” projects that most tinkerers at some point tackle, whether it be as a kid from a kit or like this. This one takes it to a new level…very very nice!