29 Mar
2001
29 Mar
'01
5:30 a.m.
I've heard that you can use pyrite cristals, and I tried it once
with cristals that formed on an old rotten lead-acid battery
but the result was not optimal. You should also experiment
with the wisker. Metals like silver and phosphor-bronze come
to mind. In essence anything that creates a PN-junction with
a low voltage drop (0.2 .. 0.3 V) should do the trick if the
ohmic resistance is not too high.
Sipke de Wal
--------------------------------------------------
"In the land of the blind .....
...... One-Eye is torchbearer"
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http://xgistor.ath.cx
----- Original Message -----
From: Ethan Dicks <ethan_dicks(a)yahoo.com>
To: <classiccmp(a)classiccmp.org>
Sent: Wednesday, March 28, 2001 4:08 PM
Subject: Crystal Radios (was Re: List spammer ID'd)
--- Pete Turnbull <pete(a)dunnington.u-net.com> wrote:
On Mar 27, 22:02, Mike Ford wrote:
Don't be silly. My crystal set had a germanium diode, and I bet Allison's
did too :-)
So did mine, but my father built a real crystal set in the 1940's. Somewhere,
I have printed instructions on how to build one, down to how to cut a section
of pipe/conduit with ears to screw it down to the block of wood that you use
as the base. Anyone know where to get a hunk of crystal these days? I have
a nephew that will be old enough to build one, soon. I figured on the diode
type, first, then, if he's still interested, show him how they did it when
Grandpa was a kid.
-ethan
-ethan
__________________________________________________
Do You Yahoo!?
Get email at your own domain with Yahoo! Mail.
http://personal.mail.yahoo.com/?.refer=text I'm
old, dirts older. When I was in school you were really cool of your
radio had six transistors...
Are you sure you weren't trying to impress people with the catwhisker on
your crystal set? ;)