Date: Thu, 13 Feb 1997 11:25:00 -0800 (PST)
From: Deborah Hunt <dhunt@exploratorium.edu>
To: Pinhole Listserv <pinhole@exploratorium.edu>
Subject: Re: Where to get crystal earphones?
In-Reply-To: <v02140b00af27ba5853b9@[136.152.2.65]>
Message-Id: <Pine.SUN.3.95.970213112315.27812A-100000@isaac>
If you will look at the materials supply page for the Exploratorium's
Snackbook, you will find suppliers for all sorts of things needed in the
classroom. To view it go to:
http://www.exploratorium.edu/publications/Snackbook/resource_guide.html
The Teacher Institute is currently updating this materials list, so watch
the TI Resources pages for future updates.
Deborah
On Wed, 12 Feb 1997, Pinhole Listserv wrote:
> Dear pinholers,
> Following is a request sent to me by a colleague -- anyone have
> and idea for sources of crystal earphones that would make a crystal
> radio an affordable project for a large number of students?
> Please forward info to tim (567587@ousd.k12.ca.us) as well as posting
> it to pinhole.
>
> Suzy Loper
>
> >Date: Mon, 10 Feb 1997 22:22:58 -0800
> >From: tim ostrom <576587@ousd.k12.ca.us>
> >MIME-Version: 1.0
> >To: suzanna@seismo.berkeley.edu
> >Subject: Where to get crystal earphones?
> >
> >Hi Suzy,
> >
> >My name is Tim Ostrom and I was a participant at your BASTEC workshop on
> >pinhole cameras. I am looking for cheap high impedence crystal
> >earphones/headphones for a class project which is an AM radio which picks up
> >stations without any form of electricity. It should be fun. I have tested
> >it out with the only pair of headphone I own so I know it works great. I am
> >working on obtaining a class set. It you know where I can get them
> >inexpensively (or how to make them) I would appreciate it! Great job on the
> >workshop!!! < :
> >
> >
> > Tim Ostrom
> > Bret Harte Jr. High School
> >
>
>
>
>
---------------------------------------------------
Deborah Hunt
Internet Resource Specialist
Exploratorium
3601 Lyon Street
San Francisco, CA 94123
Voice: 415-353-0485
Fax: 415-561-0307
email: dhunt@exploratorium.edu